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Crestal bone remodeling in polished collar implants

Author(s)
Muhammad Iftikhar Ahsen Department of Periodontology, University College of Dentistry, The University of Lahore, Pakistan
Muhammad Haseeb Department of Periodontology, University College of Dentistry, The University of Lahore, Pakistan
Sittara Javed Department of Periodontology, University College of Dentistry, The University of Lahore, Pakistan
Zainab Naqvi Department of Periodontology, University College of Dentistry, The University of Lahore, Pakistan
Muhammad Yousaf Ali Department of Periodontology, Lahore Medical and Dental College Lahore - Pakistan.
Zubair Ahmed Khan Department of Periodontology, FMH College of Dentistry, Lahore - Pakistan.
Abstract
OBJECTIVE: This study aimed to evaluate the amount of crestal bone remodeling in polished collar implants. METHODOLOGY: Thirty patients with a missing maxillary or mandibular 1st or 2nd premolar tooth requiring simultaneous bone grafting were recruited and implant placed at the level of crest with polished collar placed 1mm apical to the level of bone and bone augmentation was performed to graft the buccal threads. Buccal bone thickness was measure at crestal level as well as 1mm apical to polished collar. The implants were uncovered at 6 months and restored and patients followed up for 12 months from the time of implant placement. Cone beam computed tomography scans were taken at two time points, immediately after implant placement and at 12-month time point. RESULTS: At clinical re-entry (6 months), there was significant difference in mean buccal bone thickness found between crestal level and 1mm apical to polished collar (p<0.05). Radiographically (at 12 months), the mean buccal bone change was -1.82mm 0.57mm at crest and -0.94mm 0.31mm at 1mm apical to crest. CONCLUSION: Bone regenerative techniques were unable to prevent biologic bone remodeling around the implant platform; therefore, the outcomes of bone augmentation might be affected by the polished collar of implant.
Publication Details
Page(s) 105-108
DOI 10.25301/JPDA.324.105
Published Journal: Journal of Pakistan Dental Association, Volume: 32, Issue: 4, Year: 2023

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Keywords
Cone Beam Computed Tomography, Dental Implants, bone remodeling, Bone Augmentation, polished collar
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