ISSN : 2663-2187

Risk factors for early implant failure: A retrospective study

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Dr. Aditi Sharma, Dr. Paaras Kotwal, Dr. Reecha Gupta, Dr. Monica Kotwal
ยป doi: 10.48047/AFJBS.6.12.2024.4555-4560

Abstract

Background: The early implant failure occurs due to the development of fibrous tissue between implant and the surrounding bone in the early healing period. The present study was conducted to assess early dental implant failures. Materials & Methods:128 patients who received 175 dental implants of both genders were selected. Patients were clinically and radiographically evaluated and early dental failure was recorded. Results: Age group <40 years had 63 patients with 84 dental implants, 40-60 years had 38 with 51 implants, >60 years had 27 with 40 dental implants. Dental implant failure occurred in anterior maxilla in 10, anterior mandible in 6, posterior maxilla in 32 and posterior mandible in 14 cases. Maximum failures was seen among males (42) as compared to females (20). Experience of surgeon <5 years had 44, >5 years had 18 implant failures. Implant shape cylindrical had 23 and tapered had 39 failures. Implant neck design without machined collar had 32 and with machined collar had 30 failures. Implant length (mm) >10 mm had 6, 8-10 mm had 20 and <8 mm had 36 failures. Implant diameter (mm) <3.5 had 34, 3.6-4.5 had 17 and >4.5 had 11 failures. Bone augmentation simultaneously had 20 and staged had 38 dental implant failures. The difference was significant (P< 0.05). Conclusion: The maximum failure rates were seen in patients with posterior maxillary and posterior mandibular implants. Other risk factors were male gender, experience of surgeon <5 years, implant length <8 mm, implant diameter <3.5 mm and implant placed in previously augmented site.

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