Clinical trials

Statement of problem: The majority of studies on immediate implant placement are related to the maxillary esthetic zone. Literature concerning Immediate implant placement in the posterior region is scarce. Furthermore, there is paucity of evidence on alveolar bone dimensional changes following immediate implant placement in fresh extraction sockets of posterior teeth. Adding to that, negligible evidence is known about the soft tissue alterations which take place during modeling and remodeling phases of socket healing process; regarding the molar sites. Nevertheless, Immediate installation into a molar socket raises an extra challenge for the clinicians, because of the different anatomical features of the extraction sockets compared to that of the single-rooted teeth in the anterior zone. In addition to, implant positioning difficulties; due to the amount of the residual inter-radicular bone after extraction. Aim of the study: To assess the bucco-lingual ridge collapse after immediate implant placement in lower 1st molar sites either with customized healing abutment only; or with xenogeneic bone graft and customized healing abutment. Materials and methods: The current study will include 28 non-restorable lower 1st molar teeth indicated for extraction in the posterior area. Patients will randomly be assigned into two equal groups: the test group; Immediate implant placement + customized healing abutment group and the control group; Immediate implant placement +bone graft+ customized healing abutment group. The presented trial will investigate the following outcomes: bucco-lingual ridge collapse as the primary outcome, together with mid-facial recession, total volume gain/loss, buccal soft tissue contour, bucco-lingual bone width, and vertical bone changes as the secondary outcomes after 12 months

The anterior maxilla is a particularly challenging area for immediate implant placement due to its thin buccal bone walls. These walls are more susceptible to resorption after tooth extraction, which can lead to significant bone loss and inadequate support for an implant. However, Different socket dimension may affect the amount of bone formed labial to the implant, regardless of the garfting procedure.

Presence of keratinized tissue (KT) around dental implants, plays a crucial role in stability and health of peri-implant tissues. Several studies reported that, minimum of 2 mm keratinized tissue width is required to achieve long-term longevity. Insufficient keratinized mucosa leads to biofilm accumulation, soft tissue inflammation, eventually peri-implant mucositis and peri-implantitis. Hence, the aim of the present trial is to evaluate KTW gain, linear and volumetric changes in buccal soft tissue along with hard tissue alterations following implant restoration at sites treated either with delayed implant placement \& simultaneous FGG or the conventional FGG protocol prior to implant placement.

The aim of the study is to clinically and radiographically evaluate and compare two techniques to augment soft tissues: the conventional subepithelial connective tissue graft technique and a novel denuded interpositional pedicled rolled flap technique (DIPRF) These techniques will be used to augment edentulous ridges that are recommended for rehabilitation by an implant or a fixed restoration.

Statement of problem: The stability of peri-implant bone is a crucial factor for the long-term success of dental implants, where crestal bone plays a significant role in both the primary as well as the long- term implant stability. A bone loss of 1.5 mm during the first year of loading has been acceptable according to the early standards. However, more bone stability can be expected with the development in implant designs and surfaces over the past decades. Aim of the study: the aim of this study is to radiographically assess the crestal bone changes following delayed implant placement in mandibular previously augmented posterior sites, comparing cases with equicrestal implant placement with subcrestal implant placement

Moringa oleifera (MO) is an extraordinary nutritious vegetable tree with high medicinal value for its antibacterial properties. Formulation of various natural dental remedies from this plant and their testing for their effectiveness might yield promising antibacterial, antiplaque and anticariogenic agents with minimal side effects. Aim of the study: Part I: The aim of this in-vitro part of the study is to formulate a nontoxic mouthwash from MO leaves extract, having antimicrobial activity, to be used in part II of the study. Furthermore, stability and efficacy of the developed mouth wash will be evaluated. Part II: The aim of this randomized controlled trial is to evaluate the antibacterial, antiplaque and anticariogenic effect of MO mouthwash compared to chlorhexidine mouthwash.

Globally, there is substantial evidence indicating that low household income, lack of education, poor living conditions and inadequate psycho-social social support are potential risk factors for morbidity and premature death. Despite that, worldwide, there is scarcity in evidence on potential social determinants of oral health among different population groups.The study aims To identify the potential social determinants with an influence on oral health status of Egyptian women.

This study aims to evaluate the effect of prognostic factors, such as the severity of pulpal inflammation, carious pulp exposure, and the presence of apical periodontitis, on the success of full pulpotomy in mature permanent molars with irreversible pulpitis. It also aims to investigate the role of artificial intelligence-assisted diagnosis in predicting the prognosis of full pulpotomy.

However, recently, most described techniques for posterior atrophic maxillary rehabilitation, are targeting more conservative, cost-effective and efficient methods for sinus elevation eliminating its lateral access. The aim of the present study is to evaluate and compare the long-term implant stability for implants placed by the novel crestal sinus approach versus osseodensification using Densa-bur in Atrophic Posterior Maxilla.

Due to the evolution of esthetic implant dentistry and tissue regeneration (hard and soft tissue), flap design plays a crucial role in the maintenance and regeneration of the marginal soft tissue and interdental papillae around dental implants. The present study aims to compare soft and hard tissue changes following immediate implant placement with ridge augmentation using the vestibular flap versus single flap approach.

The success rate of dental implants after graftless sinus augmentation versus conventional sinus augmentation surgery in atrophic maxillae in edentulous patients was investigated and it was concluded that despite the bone gain in ten garftless side, implant survival were significantly lower in the non-grafted side. One year later, Lie et al., conducted a systematic review to evaluate efficacy of graftless maxillary sinus membrane elevation using the lateral window approach for implantation in the atrophic maxilla. It showed a high implant survival rate in non-grafted maxillary sinus lifts and conventional sinus lifts using augmentation materials and there was no significant difference in the ISQ values between both procedures. However, further randomized clinical trials with long-term follow-up were recommended.

Thin gingival phenotype is one of the major causative factors of gingival recession type 1 which can result in hypersensitivity, discomfort, and compromised esthetics. This study assess the efficacy of increasing the gingival thickness from thin gingival phenotype to thick gingival phenotype in the treatment of patients suffering from gingival recession (RT1) and maintenance of results using either connective tissue graft or de-epithelized free gingival graft after non-surgical periodontal debridement compared to non-surgical periodontal debridement alone.

The aim of this randomized clinical trial is to compare the six months clinical performance of the self-adhesive bulk-fill composite with the conventional nano-hybrid composite in the cervical lesions of teeth in the esthetic zone. In addition, to evaluate patient's satisfaction towards the self-adhesive bulk-fill material and its total operatory time.