The Impact of Thread Length on Implant Stability

Study Overview
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Brief Summary
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Some studies show that different types of threads in tapered implants result in differences in primary stability. The aim of this study is to a perform a prospective, controlled, randomized clinical trial comparing primary and secondary stability between long and standard thread implants in the treatment of partial edentulous patients.

Detailed Description
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The study sample consists of 23 maxillary partial edentulous patients, where 32 implants were placed, with threads of 0.7 mm or 0.3 mm in the location of premolars and molars. The comparison, in terms of primary stability, is made by measuring the ISQ value (implant stability quotient), in four locations (buccal, palatal, mesial and distal). Statistical analysis was performed using the independent T-Test.

Official Title
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The Impact of Thread Length on Implant Stability

Conditions
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Implant Stability

Intervention / Treatment
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* Device: Implants with 0,7 mm threads
* Device: Implants with 0.3 mm threads


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Minimum 18 years; No systemic conditions that contraindicate surgery; Periodontal health or periodontal disease treated as part of a periodontal support program and having a high level of plaque control; Partial edentulous patients, in the upper jaw, specifically in the location of premolars and molars; Exclusion Criteria: Patients with insufficient quantity of bone for implant placement without bone regeneration procedures; Patients who underwent medication that could affect stability and osteointegration up to 3 months prior to study initiation; Patients with untreated periodontal pathology or who have not followed periodontal supportive treatment; Smokers, Pregnant or lactating women.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Implants with 0,7mm threads<br>Placement of Implants with 0,7mm threads | Device: Implants with 0,7 mm threads<br>* Implants were placed, with threads of 0.7 mm in the location of premolars and molars.<br>|
| Active Comparator: Implants with 0,3mm threads<br>Placement of Implants with 0,3mm threads | Device: Implants with 0.3 mm threads<br>* Implants were placed, with threads of 0.3 mm in the location of premolars and molars.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| primary dental implant stability | measuring the ISQ value (implant stability quotient) | On the 1 day of implants placement | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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implant stability; implant threads