The Impact of Thread Length on Implant Stability

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

23 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-06-19

Study Completion Date

2020-06-15

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.

Conditions

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Implant Stability

Keywords

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implant stability; implant threads

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Implants with 0,7mm threads

Placement of Implants with 0,7mm threads

Group Type ACTIVE_COMPARATOR

Implants with 0,7 mm threads

Intervention Type DEVICE

Implants were placed, with threads of 0.7 mm in the location of premolars and molars.

Implants with 0,3mm threads

Placement of Implants with 0,3mm threads

Group Type ACTIVE_COMPARATOR

Implants with 0.3 mm threads

Intervention Type DEVICE

Implants were placed, with threads of 0.3 mm in the location of premolars and molars.

Interventions

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Implants with 0,7 mm threads

Implants were placed, with threads of 0.7 mm in the location of premolars and molars.

Intervention Type DEVICE

Implants with 0.3 mm threads

Implants were placed, with threads of 0.3 mm in the location of premolars and molars.

Intervention Type DEVICE

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.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Responsible Party

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Vanessa Rocha Rodrigues

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Paulo Mascarenhas, PhD

Role: STUDY_DIRECTOR

University of Lisbon

Susana Noronha, PhD

Role: STUDY_DIRECTOR

University of Lisbon

Vanessa Rodrigues, Dr

Role: PRINCIPAL_INVESTIGATOR

University of Lisbon

Locations

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Vanessa Rodirgues

Lisbon, , Portugal

Site Status

Countries

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Portugal

Other Identifiers

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