A study to compare two different types of implant abutment connections in dental implants and their role in preserving gingival health and marginal bone levels in patients with different interocclusal spaces.

Phase 3

Not yet recruiting

Conditions: Partial loss of teeth,

Registration Number: CTRI/2025/06/089553

Lead Sponsor: Sherly R

Brief Summary: The success of implants relies heavily on the design of the implant-abutment interface, which affects load distribution, bacterial seal, soft tissue health, and emergence profile. Two main implant-abutment design includes platform switching and platform matching. Also flared abutments mimic natural tooth contours better than straight ones. Interocclusal height also influences gingival health and restoration outcomes. While previous studies have explored the effects of platform switching and platform matching on bone preservation and soft tissue health, the specific impact of these configurations on the emergence profile, especially in the molar region when combined with varying interocclusal heights, remains inadequately studied. Therefore, the study is a randomised controlled trial to evaluate the gingival health and marginal bone levels between 3 groups of implant abutment platforms – platform matching with straight abutment interface, platform matching with flared abutment interface and platform switching with conical connection with various interocclusal heights in a total of 72 patients with missing teeth in the molar region. The primary outcome variable is to evaluate the gingival parameters (bleeding on probing, peri implant probing depth and plaque index in the groups. The secondary outcome variable is to evaluate the radiographic marginal bone levels in implants in the following groups. The outcomes will be measured after final prosthesis delivery, 3 months and 6 months after insertion

Detailed Description: Not available

Recruitment & Eligibility

Status: Not Yet Recruiting

Sex: All

Target Recruitment: 72

Inclusion Criteria

Patients with missing single or two molar teeth in the maxillary and mandibular region.
Systemically healthy participants without any history of periodontal disease and smoking.
Patients having stable occlusion.
Edentulous region should be well rounded with adequate keratinised mucosa.
Patients with good oral hygiene.
Edentulous site with non tilted adjacent teeth.

Exclusion Criteria

Patients developing systemic disease like diabetes mellitus etc, during the course of the study.
Participants who are pregnant or becoming pregnant during the course of the study.
Patients failing to obtain osseointegration after implant placement.

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
2. Periodontal Pocket depth	One week after final prosthesis delivery, and follow up at three and Six months
3. Plaque index.	One week after final prosthesis delivery, and follow up at three and Six months
Evaluation of Gingival Health:	One week after final prosthesis delivery, and follow up at three and Six months
1. Bleeding on Probing	One week after final prosthesis delivery, and follow up at three and Six months

Secondary Outcome Measures

Name	Time	Method
Evaluation of radiographic marginal bone levels	After final prosthesis delivery, & follow up at three & six months

Trial Locations

Locations (1): Government Dental College, Kozhikode
🇮🇳
Kozhikode, KERALA, India
Government Dental College, Kozhikode
🇮🇳Kozhikode, KERALA, India
Dr Sherly R
Principal investigator
8608825546
sherlyrajkumarm@gmail.com