Evaluation of buccal bone resorption in immediate implant placement in thin versus thick buccal bone plates: An 18-month follow-up prospective cohort study

Hani ElNahass; Omnia K Tawfik; Suzy N Naiem; Nada Zazou; Mahmoud Moussa

doi:10.1111/cid.13312

Evaluation of buccal bone resorption in immediate implant placement in thin versus thick buccal bone plates: An 18-month follow-up prospective cohort study

Clin Implant Dent Relat Res. 2024 Feb 21. doi: 10.1111/cid.13312. Online ahead of print.

Authors

Hani ElNahass^{1

2}, Omnia K Tawfik¹, Suzy N Naiem¹, Nada Zazou³, Mahmoud Moussa³

Affiliations

¹ Department of Periodontology, Faculty of Dentistry, Cairo University, Cairo, Egypt.
² Universitätsmedizin Mainz, Mainz, Germany.
³ Faculty of Dentistry, MSA University, Cairo, Egypt.

PMID: 38380779
DOI: 10.1111/cid.13312

Abstract

Objectives: The current guidelines recommend that immediate implants be placed in patients with thick (>1 mm) buccal bone due to the inevitable tissue remodeling that follows tooth extraction. The aim of the current study was to investigate the effect of buccal bone thickness on bone resorption in immediate implant placement and compare two measuring techniques of the aforementioned resorption.

Materials: The present study was designed as a prospective nonrandomized, controlled clinical trial. A total of 30 implants were split between the two study arms, thin buccal bone and thick buccal bone. The primary outcome was to assess vertical bone changes radiographically by cone beam scans preoperatively, at 2 months and 18 months after implant placement in patients with thin and thick buccal plate. Secondary outcomes included the change in the thickness of the buccal bony plate, marginal bone loss, and pink esthetic score.

Results: Only 26 implants were statistically analyzed as one early failure was observed in each group. Furthermore, 2 patients of the thick group withdrew from the study. Cone beam computed tomography measurements revealed that at 2 months the vertical bone loss was 1.09 for the thin group and 0.85 for the thick group. The buccal bone plate resorption of the thin group was 0.39 mm while it was 0.52 mm for the thick group. The buccal bone plate was 1.25 mm in the thin group and 1.88 mm in the thick group. The PES did not show any significant difference with very good esthetic results.

Conclusion: Within the limitations of the current study, the amount of buccal bone plate resorption and the subsequent thickness obtained after implantation in both groups suggest successful long-term results. The two measuring techniques have proven to be comparable and reliable in the measurement of buccal bony plate changes. https://classic.

Clinicaltrials: gov/ct2/results?cond=&term=NCT04731545&cntry=EG&state=&city=&dist=.

Keywords: buccal bone; buccal bone resorption; immediate implant; thin bone.

Associated data

ClinicalTrials.gov/NCT04731545

Grants and funding

Straumann Group