Journal of Research and Advancement in Dentistry
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Official publication of Magadh University and Kolhan University, Government of Bihar and Jharkhand, India
Year : 2016
Volume : Volume 6
Issue : Issue 1s
Address for correspondence :
Dr. Sujan Shetty
shetsujan@gmail.com
Background: A dental implant is a surgical component that interfaces with the bone of the jaw or skull to support a dental prosthesis such as a crown, bridge, denture, facial prosthesis or to act as an orthodontic anchor. The reasons for implants failure are lack of osseointegration during early healing, infection of the peri-implant tissues and breakage etc. The present study was conducted to evaluate factors leading to dental implant failure. Materials & Methods: This study was conducted in the department of prosthodontics in year 2015. In this study all the dental implants which were placed from 2011-2015 were included in the study. Data regarding name, age, gender, length of implant, diameter of implant, location of implant, bone quality were retrieved from the patient’s case file. Results: Out of 5000 implants, age group <40 years had males (550) and females (750), age group 41-60 years had males (1500) and females (1250), age group >60 years had males (350) and females (600). Out of 5000 implants, 100 showed failure. The difference was non - significant (P- 1). Out of 500 implants with diameter < 3.75mm showed 10 failures (2%), implants with diameter 3.75- 4.5 mm showed 50 failures (1.6%) while implant with diameter > 4.5mm had 40 failures (0.16%). The difference was significant (P < 0.05). Out of 700 implants placed in bone with type I quality, 2 (0.3%) showed failure. Out of 2200 implants placed in bone with type II quality, 37 (1.68%) showed failure. Out of 1800 implants placed in bone with type III quality, 60 (3.3%) showed failure. Out of 300 implants placed in bone with type IV quality, 1 (0.3%) showed failure. The difference was significant (P < 0.05). Conclusion: Implant is becoming choice of treatment for missing teeth. Failures are also common which depends on length of implant, diameter of implant, bone quality, region of implant etc. We found that implant >11.5 mm, implant with diameter < 3.75mm, implant placed in mandibular posterior region, implant placed in type III bone showed maximum failures.
Keywords: Bone quality, Failure, Implant.
