An observational study in Guided Bone, sponsored by University Hospital, Montpellier. Completed at 1 site in France. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2020-03-10.
Sponsored by University Hospital, Montpellier · Observational
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
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.
University Hospital, Montpellier is the lead sponsor of 1,244 studies on the registry; 225 are open to participants now.
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Population of patients aged between 18 and 80 years with one to two posterior mandibular teeth to extract in absence of bone graft and able to benefit from a flapless technique.
Exclusion criteria
Cone beam diagnostic examination
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
Time frame: Day diagnostic (Day 0)
Cone beam pre implant examination
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
Time frame: 5 or 6 months
Clinical measures
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
Time frame: Day of surgery
Plan to share: Undecided — NC
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This study is completed, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.
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University Hospital, Montpellier