CTG Versus Collagen Matrix for Peri-Implant Soft Tissue Augmentation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorHanoi Medical University

About this trial

This randomized controlled trial compares two techniques for peri-implant soft tissue augmentation in the mandibular molar region: an autogenous connective tissue graft (CTG) and a collagen matrix. Adult patients requiring implant treatment with insufficient peri-implant soft tissue thickness will be randomly assigned to receive either CTG or a collagen matrix at the time of implant surgery.

The study aims to evaluate and compare changes in peri-implant soft tissue thickness, width of keratinized tissue, and soft tissue contour over a 9-month follow-up period, as well as the occurrence of postoperative complications. The results of this study will help determine whether a collagen matrix can provide clinical outcomes comparable to those of connective tissue grafting for peri-implant soft tissue augmentation.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

None

Disqualifiers

None

Trial design

Design model

Parallel

Treatments tested in this trial

  • Collagen Matrix

    Device

    A porcine-derived collagen matrix is used for peri-implant soft tissue augmentation at the time of implant surgery, serving as a substitute for autogenous connective tissue grafting.

  • Connective Tissue Graft

    Procedure/Surgery

    An autogenous connective tissue graft harvested from the patient is used for peri-implant soft tissue augmentation at the time of implant surgery.

Treatment groups

46 Participants
are divided into 2 treatment groups
Group A: Connective Tissue Graft (CTG)Active comparator 1 intervention
Group B: Collagen MatrixExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Change in peri-implant soft tissue thickness

Change in peri-implant soft tissue thickness measured using standardized digital methods.

Time frame
Baseline (before surgery) to 9 months after surgery

Secondary outcomes

1

Change in width of peri-implant keratinized tissue

Change in the width of keratinized tissue around the implant measured clinically using standardized procedures.

Time frame
Baseline to 9 months after surgery
2

Change in peri-implant marginal bone level

Changes in marginal bone level assessed using cone-beam computed tomography where indicated.

Time frame
Baseline to 9 months after surgery
3

Peri-implant clinical indices

Assessment of peri-implant inflammation using standardized clinical indices.

Time frame
Up to 9 months after surgery

Other outcomes

1

Postoperative complications and adverse events

Incidence of postoperative complications, including soft tissue necrosis, infection, bleeding, implant failure, and other adverse events.

Time frame
Up to 9 months after surgery

Sponsors and contacts

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