Clinical trials

This study aims to investigate how a specific combination of electroacupuncture points, Tongbian (NP82) and Daheng (SP15), affects bowel movements in healthy volunteers. Constipation is a significant health issue, especially for post-stroke patients, and current treatments like laxatives often have unwanted side effects. The researchers want to determine if stimulating these two acupuncture points can objectively increase the frequency of bowel activity. Participants will undergo a three-stage procedure: a 30-minute period of baseline bowel sound recording, followed by 20 minutes of electroacupuncture stimulation at the specific points, and a final 30-minute recording period after the intervention. Throughout the study, an advanced digital stethoscope (3M™ Littmann® CORE) will be used to record bowel sounds objectively. This data will then be analyzed to measure any significant changes in bowel motility caused by the acupuncture.

Cervical spondylosis is a prevalent health issue that significantly impacts quality of life, with Cervical Spondylotic Radiculopathy (CSR) accounting for 60-70% of cases * While modern medicine offers various treatments, the frequent use of painkillers often leads to undesirable side effects * In Traditional Chinese Medicine, electroacupuncture is a safe and effective method recognized by the Ministry of Health for treating this condition * The "Three-Needle Dazhui" technique is a specialized acupuncture method that simultaneously uses three needles at the Dazhui (GV14) point to strongly activate Yang Qi and dispel cold, making it particularly suitable for the Wind-Cold syndrome. This study aims to evaluate whether the combination of the Three-Needle Dazhui technique and electroacupuncture yields better results in pain reduction and functional improvement compared to electroacupuncture alone in patients with cervical spondylosis and Wind-Cold syndrome.

Dyslipidemia (DL) is a metabolic disorder characterized by an imbalance of blood lipid components, serving as a leading silent cause of dangerous cardiovascular diseases and increased mortality risk globally. According to the World Health Organization (WHO), cardiovascular diseases account for 32% of all deaths worldwide, with dyslipidemia playing a crucial role in the pathogenesis of 85% of fatalities caused by heart attacks and strokes. Although current management primarily relies on lifestyle modifications and lipid-lowering medications such as statins, fibrates, or niacin, some patients still encounter difficulties due to inadequate treatment response, adverse side effects, or poor long-term compliance. In this context, Traditional Chinese Medicine (TCM) therapies are increasingly being widely applied, either as monotherapy or in combination with Western medicine. Notably, auricular acupuncture-a method focusing on specific acupoints on the ear-has been recognized for its great potential in modulating lipid profiles, particularly demonstrating therapeutic efficacy in patients with Phlegm-Dampness syndrome. Theoretically and clinically, Phlegm-Dampness syndrome is inextricably linked to the pathogenesis and progression of dyslipidemia (DL); furthermore, clinical research in China indicates that the Phlegm pattern accounts for the highest proportion among the five traditional syndromes of this condition, and a greater severity of Phlegm-Dampness correlates positively with higher levels of TC and LDL-c. In terms of treatment, auricular pellets (a modality of auricular acupuncture) have been demonstrated to improve cardiovascular health by reducing TC, LDL-c, and TGR levels while elevating HDL-c in obese patients with mild-to-moderate DL. In Vietnam, however, studies evaluating the application of auricular pellets in patients with DL remain limited, primarily focusing on individuals with simple overweight or obesity without documented concurrent metabolic disorders. Notably, a study by Nguyen Vu Thien Duyen (2021) reported that a 3-acupoint formula consisting of Hunger (TGR3), Stomach (CO4), and Endocrine (CO18) effectively reduced lipid profiles to a moderate extent in obese individuals. Given the limitations in evaluating therapeutic efficacy and the scarcity of published studies discussing the effects of lowering blood lipid profiles and alleviating Phlegm-Dampness symptoms for this specific pattern in Vietnam, the investigators conducted this study to evaluate the degree of lipid profile reduction and the clinical symptom improvement of the Phlegm-Dampness syndrome using auricular acupuncture in patients with dyslipidemia presenting with the Phlegm-Dampness syndrome.

The goal of this clinical trial is to learn if catgut embedding works to treat chronic low back pain in adults with lumbar spondylosis and "Blood Stasis" syndrome. The main questions it aims to answer are: Does catgut embedding lower back pain more effectively than electro-acupuncture? Does catgut embedding improve the daily physical activities of participants? Researchers will compare catgut embedding to electro-acupuncture to see which method works better to reduce pain and improve quality of life. All participants will also receive counseling on lifestyle changes and back exercises. Participants will: Be randomly assigned to receive either catgut embedding (2 sessions over 4 weeks) or electro-acupuncture (20 sessions over 4 weeks). Visit the clinic for treatments and checkups. Complete surveys about their pain levels and ability to perform daily tasks at the start, at 2 weeks, and at 4 weeks.

Non-organic insomnia is a prevalent disorder that significantly impairs quality of life, characterized by difficulty initiating or maintaining sleep alongside daytime functional decline. This condition is particularly common among adults facing chronic stress, which increases the risk of chronic diseases and dysregulates the Microbiota-Gut-Brain Axis (MGBA)-a bidirectional communication system between the central nervous system and the gut microbiota. Prolonged sleep deprivation and stress can trigger inflammatory responses and gut dysbiosis, which in turn exacerbate emotional and sleep disturbances. While conventional sedative-hypnotics often carry side effects and risks of dependency, traditional medicine interventions are emerging as potential sustainable solutions. This study evaluates the efficacy of thread embedding combined with auricular acupressure based on individualized traditional Chinese medicine syndrome differentiation, while clarifying the relationship between clinical sleep improvement and changes in MGBA-related inflammatory markers, specifically interleukin-6 and calprotectin. The goal of this clinical trial is to evaluate the clinical efficacy and preliminarily investigate the mechanisms of action-via the Microbiota-Gut-Brain Axis-of individualized Traditional Chinese Medicine (targeting Heart-Spleen Deficiency and Liver Qi Stagnation syndromes) using thread embedding acupuncture combined with auricular acupressure to improve sleep quality in patients with insomnia, compared to a non-individualized protocol. The main questions it aims to answer are: * Does the combined method of thread embedding acupuncture and auricular acupressure based on syndrome differentiation improve sleep quality more effectively than the standardized protocol? * Is there a significant difference in the change of IL-6 and Calprotectin levels following treatment in the intervention group compared to the control group? * Does post-treatment clinical improvement correlate with the reduction of these inflammatory markers? Participants will: * Receive thread embedding acupuncture sessions every 4 weeks and have ear seeds (auricular acupressure) replaced every 2 weeks . Self-massage the ear seeds for 1 to 2 minutes several times each day, especially before bedtime. * Complete assessments of sleep quality (PSQI, ISI) and digestive health (GSRS) every 2 weeks through week 8. * Provide blood and stool samples at the start and end of the study to measure inflammation markers. * Be monitored for any adverse effects, such as local pain, dizziness, or needle fainting, during the trial period.

Neck pain is a highly prevalent condition, affecting 30% to 50% of the population, with cervical spondylosis accounting for up to 80% of these cases. The burden of cervical spondylosis continues to increase, leading to chronic mechanical pain, restricted mobility, and a significant socioeconomic impact. Treatment mainly includes non-steroidal anti-inflammatory drugs (NSAIDs), physical therapy, and traditional medicine therapies such as massage and acupuncture. Jin's Three-Needle technique (specifically Cervical Three-Needle targeting Dazhu, Tianzhu, and Bailao acupoints) is a specialized acupuncture method created by Professor Jin Rui, demonstrating therapeutic effectiveness in improving local circulation and relieving neck pain. Recent studies have shown that acupuncture effectively manages pain in cervical spondylosis, especially for the Blood Stasis syndrome. Additionally, combining these specific acupoints with standard electroacupuncture and active movement exercises plays an essential role in alleviating pain and restoring cervical spine function. In practice, many practitioners apply Jin's Three-Needle technique to treat cervical spondylosis with considerable effectiveness, though it has not been thoroughly evidence-based in Vietnam for the Blood Stasis syndrome. Given the limitations in evaluating treatment effectiveness and the lack of published research discussing the analgesic effects of Jin's Three-Needle technique for this specific syndrome in Vietnam , the investigators conducted the study to evaluate the pain reduction and range of motion improvement of Jin's Three-Needle technique combined with electroacupuncture in patients with cervical spondylosis with blood stasis syndrome.

The purpose of this clinical trial is to evaluate the efficacy of auricular acupressure combined with an antihistamine (Loratadine) in treating patients diagnosed with Wind-Heat type urticaria. Participants will be randomly assigned to either the intervention group or the control group. The purpose of this clinical trial is to evaluate the efficacy of auricular acupressure combined with an antihistamine (Loratadine) in treating patients diagnosed with Wind-Heat type urticaria. Participants will be randomly assigned to either the intervention group or the control group. The main questions the study aims to answer are: * Does true auricular acupressure combined with Loratadine reduce urticaria symptoms (measured by the Urticaria Activity Score - UAS) more effectively than sham acupressure with Loratadine? * Does the intervention improve the patients' quality of life (measured by the Dermatology Life Quality Index - DLQI) better than the control treatment? * Are there any adverse effects associated with the auricular acupressure treatment during the intervention period? Participants will: * Take a standard daily dose of oral Loratadine (10mg). * Visit the clinic once a week for 4 weeks to have Vaccaria seed patches applied to their ear (either true therapeutic points or sham points, depending on their assigned group). * Self-stimulate the acupoints by pressing the patches for 1 to 2 minutes, 2 to 3 times a day at home. * Record their daily urticaria symptoms (wheals and pruritus) using the Urticaria Activity Score (UAS). * Complete the Dermatology Life Quality Index (DLQI) questionnaire at the beginning and at the end of the 4-week study period.

This study aims to compare the wound healing efficacy and postoperative experiences between the 940 nm diode laser technique and the traditional electrosurgery method for treating ankyloglossia (tongue-tie) in children aged 3 to 6 years. Participants are randomly assigned to one of two groups: Experimental Group - Patients undergo lingual frenectomy using a 940 nm diode laser and Active Comparator Group - Patients undergo the procedure using conventional high-frequency electrosurgery. The study evaluates several key outcomes at multiple intervals (24 hours, 3 days, 1 week, and 1 month post-surgery), including: (1) Wound Healing: Measured by the Early Wound Healing Score (EHS); (2) Pain Levels: Assessed using the Wong-Baker FACES Pain Rating Scale; (3) Bleeding Control: Evaluation of intraoperative bleeding; (4) Tongue Mobility: Measurement of free tongue length according to Kotlow's classification. The goal is to determine if the diode laser provides superior healing, less pain, and better bleeding control compared to electrosurgery.

This study was designed as a randomized controlled trial (RCT) with a multicenter, single-blind methodology. Participants diagnosed with insomnia attributable to the Heart-Spleen Deficiency pattern, receiving treatment at the Ho Chi Minh City Hospital of Traditional Medicine and Hospital 1A, were randomly allocated into two groups.

This study aims to evaluate the effectiveness of electroacupuncture combined with vacuum cupping therapy in treating simple periarthritis of the shoulder associated with the traditional medicine syndrome of Qi stagnation and blood stasis. Shoulder periarthritis is a common condition that causes pain, stiffness, and limited movement of the shoulder due to injury or inflammation of the muscles, tendons, ligaments, and surrounding soft tissues. It can interfere with daily activities such as dressing, lifting objects, sleeping, and working. Electroacupuncture is commonly used to relieve shoulder pain and improve shoulder function. Vacuum cupping therapy is another non-drug treatment that may help improve blood circulation, reduce muscle tightness, decrease pain, and improve mobility. However, there is currently limited evidence about whether combining electroacupuncture with vacuum cupping provides better results than electroacupuncture alone in patients with shoulder periarthritis and Qi stagnation-blood stasis syndrome. This study is being conducted to determine whether the combined treatment is more effective and safe. A total of 54 participants with simple shoulder periarthritis and Qi stagnation-blood stasis syndrome will be enrolled in the study. Participants will be randomly assigned to one of two groups: Group 1: treatment with electroacupuncture alone. Group 2: treatment with electroacupuncture combined with vacuum cupping therapy. All participants will also receive advice on shoulder exercises, posture, and daily activities to support recovery. Treatments will be performed by licensed traditional medicine practitioners. Each participant will take part in the study for two weeks. Assessments will be performed before treatment, after one week, and after two weeks. The study will evaluate: Pain intensity using the Visual Analogue Scale (VAS). Shoulder pain and disability using the Shoulder Pain and Disability Index (SPADI). Shoulder range of motion using the McGill-McRomi Range of Motion Index. Any side effects or unwanted events related to treatment. Possible benefits of participating in this study include reduced shoulder pain, improved movement and daily function, and close monitoring by health care professionals. Participants may also benefit from receiving non-drug therapies at no cost during the study period. The findings of this research may help improve future treatment options for patients with shoulder pain. Possible risks of electroacupuncture include mild pain at the needle site, minor bleeding, bruising, dizziness, or fainting. Possible risks of vacuum cupping include temporary discomfort, skin redness, bruising, or mild pain in the treated area. These side effects are usually mild and temporary. If any unexpected problem occurs, participants will receive prompt medical attention. Participation in this study is completely voluntary. Participants may refuse to join or may withdraw from the study at any time without affecting their usual medical care. All personal information collected during the study will remain confidential and will only be used for research purposes.

Allergic rhinitis (AR) is an inflammatory disease of the nasal mucosa characterized by one or more of the following symptoms: nasal obstruction, rhinorrhea, sneezing, and nasal itching. It is an IgE-mediated immune disorder that typically occurs after exposure to allergens such as pollen, house dust mites, and animal dander. The reported prevalence of rhinitis in adults ranges widely from 1% to over 60%, largely depending on diagnostic definitions and geographic regions. Allergic rhinitis is estimated to affect approximately 10% to 30% of the global population and imposes a substantial burden on sleep quality, quality of life, cognitive function, and work productivity. Due to its chronic course, frequent recurrence, and complex pathophysiology, allergic rhinitis not only adversely affects patients' physical and mental health and overall quality of life but also results in significant socioeconomic burden. Current standard management strategies include allergen avoidance and pharmacological treatments such as oral and intranasal antihistamines, leukotriene receptor antagonists, and intranasal glucocorticoids. However, despite stepwise treatment approaches, a considerable proportion of patients continue to experience persistent symptoms and impaired quality of life, and may suffer from medication-related adverse effects, including drowsiness, dryness of the nasal or ocular mucosa, and nasal irritation. Allergen-specific immunotherapy is currently regarded as the only disease-modifying treatment for allergic rhinitis. Nevertheless, its long treatment duration, high cost, requirement for medical supervision, and variable patient response substantially limit accessibility and long-term adherence, particularly in low- and middle-income countries. In this context, there is an increasing need to identify adjunctive therapeutic approaches that are safe, effective, cost-efficient, and culturally acceptable. Traditional medicine has been widely applied in the management of allergic rhinitis in many countries, including Vietnam. Therapeutic modalities such as acupuncture, moxibustion, thread embedding therapy, and herbal medicine have been reported to alleviate symptoms, reduce recurrence rates, improve quality of life, and decrease reliance on pharmacological treatments. Moxibustion is a traditional therapeutic technique that applies heat generated by burning moxa sticks or moxa cones to specific acupuncture points, with the aim of regulating Qi and blood, strengthening vital energy, and enhancing the body's resistance to disease. This method is generally considered safe, easy to administer, low-cost, and suitable for implementation in community settings and primary health-care facilities. Several clinical studies worldwide have demonstrated that moxibustion can significantly improve symptoms of allergic rhinitis with a low incidence of adverse effects. However, high-quality scientific evidence regarding the efficacy and safety of moxibustion in the treatment of allergic rhinitis remains limited. In particular, there is a lack of well-designed and standardized randomized controlled trials. In Vietnam, although moxibustion is commonly used in traditional medicine practice, no clinical studies to date have systematically evaluated its effectiveness and safety in patients with allergic rhinitis. This gap in evidence highlights the need for rigorously designed clinical studies to strengthen the scientific basis, standardize treatment protocols, support the integration of moxibustion into clinical practice, and guide the development of integrative treatment models combining conventional medicine and traditional medicine in the management of allergic rhinitis. Based on these considerations, the present study is conducted to evaluate the efficacy and safety of moxibustion in the treatment of allergic rhinitis, with the aim of providing additional clinical evidence, improving treatment quality, and optimizing disease management for patients.

The goal of this observational study is to identify and evaluate the characteristics of Traditional Medicine (TM) syndromes in men aged 18 to 60 with male infertility and oligoasthenoteratozoospermia (OAT) syndrome. The main questions it aims to answer are: * What are the common Traditional Medicine syndromes and symptoms associated with male infertility based on Traditional Medicine literature? * What are the specific Traditional Medicine syndromes and symptoms found in men with OAT syndrome at Binh Dan Hospital when analyzed using Latent Tree Models? The research will be conducted in two phases: * Phase 1 (Literature Review): Researchers will collect and analyze Traditional Medicine texts to list the symptoms and syndromes related to male infertility. This phase will help create a standardized clinical survey. * Phase 2 (Clinical Survey): Researchers will recruit 300 male participants with OAT syndrome. * Participants will answer a survey questionnaire about their Traditional Medicine symptoms. * Researchers will apply Latent Tree Models (a mathematical approach) to the collected data to objectively classify the TM syndromes.

Chronic low back pain (CLBP) due to lumbar spondylosis is a leading cause of disability, significantly impacting the quality of life in middle-aged and elderly populations. While electroacupuncture (EA) and auricular acupressure (AA) are recognized as safe, non-pharmacological therapies, high-quality clinical evidence specifically evaluating their combined effects on CLBP patients with TCM "Kidney Yin deficiency" syndrome remains limited.This randomized controlled trial aims to evaluate the efficacy and safety of combining EA with AA (utilizing Vaccaria segetalis seeds) compared to EA combined with sham AA. The study will focus on 76 eligible patients at Le Van Thinh Hospital. Primary objectives are to measure changes in pain intensity (VAS) and functional improvement (ODI) at three intervals: baseline (T0), after 7 days (T1), and upon completion of the 14-day intervention (T2). The findings are expected to provide an evidence-based foundation for an integrated treatment approach to manage chronic lumbar pain effectively.

The goal of this clinical trial is to learn the effects of the "Xuong tan lac than" exercise on range of motion and muscle endurance in healthy volunteers. The main questions it aims to answer are: * Does practicing the "Xuong tan lac than" exercise improve joint range of motion (cervical spine, lumbar spine, shoulder, elbow, wrist, knee, and ankle)? * Does the exercise improve muscle endurance around these joints? Participants will: * Perform the "Xuong tan lac than" exercise for 12 weeks (5 days per week, once daily). * Be trained to perform the exercise correctly before starting the intervention. * Undergo assessments of joint range of motion and muscle endurance at baseline and after 2, 4, 8, and 12 weeks.

This study will evaluate whether blood tests that measure IgE antibodies to two shrimp proteins, tropomyosin and hemocyanin, can help diagnose shrimp allergy in children. Children with suspected IgE-mediated shrimp allergy will undergo oral food challenge, skin prick testing, and blood sampling. Oral food challenge results will be used as the reference standard to determine whether these tests can accurately identify true shrimp allergy and help improve diagnosis in clinical practice.

Erectile dysfunction (ED) is a common condition that significantly affects quality of life, psychological well-being, and interpersonal relationships. In Traditional Medicine, ED is classified into different syndrome patterns, which are essential for guiding individualized treatment; however, evidence on their distribution and associated factors in Vietnam remains limited. This cross-sectional study aims to determine the distribution of Traditional Medicine syndrome patterns in patients with ED and to evaluate their associations with demographic characteristics, clinical features, psychological status, and lifestyle factors, thereby providing evidence to support improved diagnosis and integrative treatment approaches.

Immediate implant placement in the esthetic zone is often associated with buccal bone deficiency, which may compromise esthetic outcomes and long-term implant stability. Autogenous bone graft harvested from the maxillary tuberosity provides corticocancellous bone with favorable biological properties and may help reconstruct the buccal bone plate during immediate implant placement. This prospective case series aims to evaluate the clinical and esthetic outcomes of immediate implant placement combined with autogenous maxillary tuberosity graft in the esthetic zone. The primary outcomes include buccal bone thickness measured on cone-beam computed tomography (CBCT), facial soft tissue thickness measured clinically, and the pink esthetic score (PES) after implant restoration.

The goal of this randomized clinical trial is to evaluate whether cyanoacrylate tissue adhesive can improve postoperative outcomes compared with conventional silk sutures in patients undergoing surgical removal of impacted mandibular third molars. The main questions it aims to answer is: Is there a difference in wound healing support, soft-tissue conditions, and microbiological outcomes at the surgical site of impacted mandibular third molar extraction between closure with conventional sutures and cyanoacrylate tissue adhesive? Researchers will compare cyanoacrylate tissue adhesive with conventional silk sutures to determine whether the adhesive provides superior postoperative recovery and periodontal outcomes. Participants will: * Undergo surgical extraction of an impacted mandibular third molar. * Receive wound closure using either cyanoacrylate tissue adhesive or conventional silk sutures. * Be followed postoperatively for assessment of pain, swelling, trismus, soft-tissue healing, and periodontal measurements at specified time points.

The goal of this clinical trial is to learn if triclosan-coated absorbable stitches (polyglactin 910 sutures coated with triclosan, an antibacterial agent) help soft tissue heal better and have fewer bacteria stuck to the stitches after lower impacted wisdom tooth surgery in adults aged 18 to 35 years. The main questions it aims to answer are: 1. Does triclosan-coated polyglactin 910 suture lead to better soft-tissue wound healing than non-coated polyglactin 910 suture on postoperative days 3, 5, and 7 after mandibular impacted third molar surgery? 2. Does triclosan-coated polyglactin 910 suture result in a lower oral bacterial load adhered to the suture material than non-coated polyglactin 910 suture on postoperative days 3, 5, and 7 after mandibular impacted third molar surgery? Participants will: * Have surgery to remove two similar lower impacted wisdom teeth (one on each side) * Receive triclosan-coated stitches on one side and standard stitches on the other side, with the side assignment chosen at random * Return for follow-up visits on day three, day five, and day seven after surgery for healing checks, simple ratings of pain and swelling, and collection of a small stitch sample for bacterial testing.

Impacted lower third molar extraction is one of the most commonly performed dental procedures in daily practice. However, this is considered a relatively invasive procedure. During the surgery, dental surgeon must reflect a full-thickness flap, remove bone to expose the tooth, section and deliver the tooth. As a result, after surgery, patients often experience many complications, from swelling, pain, jaw tightness, etc. to alveolar bone loss, periodontal problems distal to the second molar, etc. Therefore, clinicians are always looking for additional therapies to minimize complications, helping patients have a more comfortable experience after wisdom tooth surgery. To date, placing grafting materials such as bone or other biological materials (growth factors, platelet-rich plasma, platelet-rich fibrin) into the tooth socket has been shown to be able to preserve the alveolar crest after extraction. However, these materials require preparation time, are costly, and have the risk of infection related to bone grafts. Meanwhile, low-level laser therapy (LLLT) is known as a safe, non-invasive therapy that can affect cell metabolism without causing tissue damage. This therapy has been widely applied in many fields of medicine in general and in dentistry in particular. Low-level lasers have been studied to help reduce swelling, pain, and jaw tightness after impacted lower wisdom teeth surgery. In vitro or in vivo studies evaluating the healing effect of low-level lasers have given very positive results. However, there is still a lack of scientific evidence to prove the healing effect of low-level lasers on human tooth extraction sockets. The study we conducted is a scientific study, in the field of Dentistry. This study aimed to evaluate the effectiveness of low-level laser on soft tissue and bone healing after surgical extraction of impacted lower third molars in a group of Vietnamese population.

This study aims to evaluate the antibacterial effects of injectable platelet-rich fibrin (i-PRF) in vitro, and to assess the clinical and radiographic outcomes of using advanced platelet-rich fibrin (A-PRF+) and i-PRF in regenerative endodontic treatment of mature permanent teeth with necrotic pulp. The study will compare the effectiveness of PRF-based treatment with conventional blood clot-based regenerative endodontics.

The goal of this clinical trial is to learn whether phacoemulsification combined with goniosynechialysis (Phaco-GSL) is as effective and safe as trabeculectomy in treating patients with primary angle-closure glaucoma. The main questions it aims to answer are: * Does Phaco-GSL provide similar or better intraocular pressure (IOP) control compared to trabeculectomy? * What are the rates of postoperative complications or adverse events between the two surgical approaches? * How do the two procedures compare in terms of visual acuity recovery and need for glaucoma medications? Researchers will compare Phaco-GSL to trabeculectomy to determine which procedure offers better overall outcomes for patients with angle-closure glaucoma. Participants will: Be randomly assigned to undergo either Phaco-GSL or trabeculectomy Attend scheduled follow-up visits at regular intervals (e.g., 1 week, 1 month, 3 months, 6 months, 12 months) for eye exams and pressure checks

Impacted mandibular third molars can cause various complications to the adjacent second molars, such as dental caries, periodontitis, or root resorption. These complications often progress silently and asymptomatically. A typical scenario involves a mesioangularly impacted third molar exerting pressure on the distal alveolar bone of the second molar, resulting in persistent food impaction that is difficult for patients to clean. Furthermore, the surgical removal of deeply impacted or severely angulated mandibular third molars often requires bone removal in the area adjacent to the second molar. These factors may exacerbate distal periodontal defects of the second molar, especially in individuals over the age of 25. This research focuses on evaluating the effectiveness of a new-generation collagen membrane in promoting healing after the extraction of impacted mandibular third molars in patients at risk of distal periodontal tissue damage to the second molars

Cervical spondylosis is one of the common causes of chronic neck pain. It can significantly affect the quality of life, lead to disabilities, and increase the economic burden on patients. Treatment mainly includes pain relievers, non-steroidal anti-inflammatory drugs (NSAIDs), muscle relaxants or physical therapy. The condition tends to recur frequently; therefore, long-term use of medication can lead to unwanted effects on the digestive system, kidneys, and cardiovascular system. Dry cupping therapy is a non-pharmacological method that has been shown to be effective in pain management. Cupping therapy has the advantage of being applicable to patients who are afraid of needles and has a wide area of effect. Given the limitations in evaluating treatment effectiveness and safety, along with the lack of published research discussing the analgesic effects of dry cupping for neck pain caused by cervical spondylosis, the investigators conducted the study on pain reduction and safety of cupping therapy in patients with neck pain caused by cervical spondylosis.

The goal of this clinical trial is to evaluate the effectiveness of dynamic navigation in full-arch dental implant placement in patients with complete maxillary edentulism. The main questions it aims to answer are: * the accuracy of nasopalatine implants, trans-sinus implants, and trans-nasal implants placement in the anterior maxillary bone with dynamic navigation * the clinical effectiveness of nasopalatine implants, trans-sinus implants, and trans-nasal implants in full-arch rehabilitation * the correlation between the anatomical features of the nasal cavity and the anterior sinus wall on CBCT images and their influence on nasopalatine implants, trans-sinus implants, and trans-nasal implants position