Bone Loss in Posterior Mandible Postextraction Sockets

Completed

• Conditions: Guided Bone

• Registration Number: NCT04051905
• Lead Sponsor: University Hospital, Montpellier

Brief Summary

The aim of this study is to evaluate the bone loss after extraction. The surgery protocol is flapless, and the teeth are mandibular premolars or molars leaving sockets with 4 walls intact or at least 3 walls intact and the buccal wall at 80% . This study will include 40 patients

Detailed Description

Primary objective :

Estimate the percentage of bone volume loss o and the percentage thickness loss of the buccal and palatal cortical for patients who underwent natural healing in the mandibular molar and premolar areas.

Methods :

Before tooth extraction of a premolar or molar in mandibular area by flapless technique, a CBCT preoperative is performed to verify the integrity of cortical and measure the height and width of the residual cavity. Caliper measurements will also be performed during surgery in order to integrate also the thickness of the bone tables and gingival thickness.

After natural healing , the pre-implant scan performed at six months postoperatively will measure the height and width of the grafted cell, to compare measurements and evaluate the dynamics of alveolar resorption.

Study Timeline

• Study First Submitted: 2019-08-08
• Study First Submitted QC: 2019-08-08
• Study First Posted: 2019-08-09
• Study Start: 2019-09-30
• Primary Completion: 2019-12-30
• Status Verified: 2020-03
• Study Completion: 2020-03-06
• Last Update Submitted: 2020-03-09
• Last Update Posted: 2020-03-10

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Cone beam diagnostic examination	Day diagnostic (Day 0)	Cone beam diagnostic examination: Millimeter measurements will be taken at Day 0.; This examination is an X-ray technique that uses a cone-shaped radiation beam. The measurements will be made on radiographic examinations; Mucous measures; * Vestibular cortical Distance, lingual cortical measured in the middle of the cell; * Depth of the slot lingual cortical side; * Depth of the cell vestibular cortical side; Bone measures; * Thickness of the lingual cortical measured caliper 2 millimeters under the rim; * Vestibular cortical thickness measured with calipers 2 millimeters under the rim; * Depth of the slot lingual cortical side; * Depth of the cell vestibular cortical side

Secondary Outcome Measures

Name	Time	Method
Cone beam pre implant examination	5 or 6 months	Cone beam pre implant examination : millimeter measurements will be taken at 5 or 6 months.; This examination is an X-ray technique that uses a cone-shaped radiation beam. The measurements will be made on radiographic examinations; Mucous measures; * Vestibular cortical Distance, lingual cortical measured in the middle of the cell; * Depth of the slot lingual cortical side; * Depth of the cell vestibular cortical side; Bone measures; * Thickness of the lingual cortical measured caliper 2 millimeters under the rim; * Vestibular cortical thickness measured with calipers 2 millimeters under the rim; * Depth of the slot lingual cortical side; * Depth of the cell vestibular cortical side
Clinical measures	Day of surgery	Clinical measures on the day of surgery; Bone measures; * Thickness of the lingual cortical measured caliper 2 millimeters under the rim; * Vestibular cortical thickness measured with calipers 2 millimeters under the rim; * Cortical vestibular cortical lingual distance, measured in the middle of the cell; * Depth of the slot lingual cortical side; * Depth of the cell vestibular cortical side; Mucous measure: * Gum buccal keratinized; * Keratinized gingiva lingual; * Cortical vestibular cortical lingual distance measured in the middle of the cell

Trial Locations

Locations (1)

UHMontpellier; 🇫🇷 Montpellier, France