None listed
Conditions
Brief summary
Objective: To evaluate the influence of different surgical techniques (underpreparation and expanders) versus conventional drilling on the primary stability of implants using the Osstell method in bone with low bone density (type III and type IV) located in the posterior region of the maxilla (molars and premolars) The hypothesis of this study is that those implants placed using underpreparation techniques and/or expanders will have higher levels of primary stability than those inserted using conventional drilling, which will translate into higher levels of success.
Interventions
Placement of subantral implants using different techniques:
- Under preparation: under-drilling or preparation with drills with a diameter smaller than the diameter of the implant.
- Use of motorized bone expanders: the expanders are inserted into the bone with motor-driven rotation, which decreases surgical trauma and provides more control over the expansion site. The thread pattern compacts the bone laterally as the instrument is advanced toward the bone crest.
- Under preparation: once
Placement of subantral implants using different techniques: - Under preparation: under-drilling or preparation with drills with a diameter smaller than the diameter of the implant. - Use of motorized bone expanders: the expanders are inserted into the bone with motor-driven rotation, which decreases surgical trauma and provides more control over the expansion site. The thread pattern compacts the bone laterally as the instrument is advanced toward the bone crest. - Under preparation: once only 1-2 hours session. - Use of motorized bone expanders: once only 1-2 hours session. At 12 weeks in the second surgical phase, the ISQ will be measured in all patients. This intervention will be carried out by professors of Oral Surgery in the operating room of official master of oral surgery and implantology at the University of Granada.
Sponsors
Department of Stomatology. Faculty of Dentistry, University of Granada.
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Outcomes Assessor)
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
-Patients who present single or partial edentulism at the level of the upper premolars and molars and who wish to have implants placed -Subjects over 18 years of age - Patients who do not abuse alcohol, drugs or chronic smokers (< 10 cigarettes a day) - Patients with an adequate periodontal status and if they suffer from previously treated periodontal disease - Patients with no known mental disorders, with an adequate level of education to understand the study and who sign their informed consent to participate in it.
Exclusion criteria
-Pregnant or lactating women - Patients with a systemic disease or drug treatment that could affect the osseointegration process - Patients undergoing radiotherapy - Patients with diabetes not controlled by treatment or diet - Patients with a serious psychiatric disease, suspected of having drug abuse, tobacco or alcoholism - Patients with poor oral hygiene or untreated periodontal disease - Patients who will not meet the standards of the study.
Outcome results
None listed