Comparison of bone dimensional changes in immediate implant placement in mandibular premolars and/or molar sites with a horizontal gap more than 2 millimeters with or without graft.
Conditions
Interventions
Intervention 1: Patients in the second group receive one immediate implant with allograft and membrane. Intervention 2: Patients in the third group receive one immediate implant with xenograft and mem
Sponsors
Esfahan University of Medical Sciences
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Age more than 18 years Good oral hygiene with optimal occlusion (without any parafunction) Buccal bone thickness greater than 1 mm as previously measured by CBCT Presence of mandibular premolar or molar with hopeless prognosis due to severe caries or irreparable fracture. The presence of at least 2 mm of keratinized gingiva around the hopeless tooth
Exclusion criteria
Exclusion criteria: No entry of patients with suppressed immunity or immunodeficiency, such as patients with uncontrolled diabetes or with a history of head and neck radiotherapy No entry of pregnant or lactating women No entry of heavy smokers (more than 10 cigarettes per day)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Horizontal and vertical bone dimensional changes. Timepoint: Before tooth extraction/just after implant placement/3 months after implant placement. Method of measurement: Radiographic evaluation to check the horizontal and vertical changes of buccal bone includes the use of CBCT scan before tooth extraction, right after implant placement and 3 months after implant placement. Through CBCT scan, the following items are evaluated: the vertical distance between the shoulder of the implant and the surface Buccal bone crest, buccal bone thickness and the distance between the buccal surface of the implant and the external surface of the buccal bone (the existing distance along with the thickness of the buccal bone).In these cases, the reference point for measuring the horizontal changes of the buccal bone is 1.5 mm more apical than the shoulder of the implant. To evaluate the vertical changes, the vertical distance between the shoulder of the implant and the crest of the buccal bone surface is measured along the longitudinal axis of the implant. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactArsham azarbad
Esfahan University of Medical Sciences
Outcome results
None listed