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Periimplant Bone Changes in Different Abutment Heights and Insertion Timing in Posterior Mandibular Areas

NCT04340726 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL

Last updated 2020-04-09

No results posted yet for this study

Summary

The aim of this study was to compare the influence of the abutment height and insertion timing on early marginal bone loss (MBL) in posterior mandibular partial implant-supported restorations.

Material and methods: The study was planned as a prospective, randomized, controlled parallel group including subjects in need of two implants for the restoration of an edentulous posterior mandibular area. Data were gathered on age, gender, attached gingiva height, bleeding on probing (BoP), smoking habits and previous periodontitis. The patients were allocated into three groups: Group A implants were immediately connected to 2 mm height abutments; Group B implants were immediately connected to 1 mm height abutments; Group C implants were left to heal in a sub-mucosal position and 2 mm abutments were inserted in a second stage surgery. Peri-apical radiographs were taken at the implant surgery (baseline), 4 weeks after surgery (T1), 16 weeks after implant placement at the final restoration delivery (T2) and 1-year after implant placement (T3).

Conditions

  • Dental Implant Failed

Interventions

PROCEDURE

One time abutment

Sponsors & Collaborators

  • Universidade Católica Portuguesa

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-01-01
Primary Completion
2015-12-01
Completion
2015-12-31

Countries

  • Portugal

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04340726 on ClinicalTrials.gov