Clinical benefits of ridge preservation for implant placement compared to natural healing in maxillary teeth: A retrospective study

Abstract

Aim The purpose of this retrospective study was to determine clinical benefits of ridge preservation in terms of surgical invasiveness of implant placement compared to natural healing in the maxilla. Materials & Methods This study included 178 patients with 206 implants placed at ridge‐preserved sites and 493 patients with 656 implants placed at naturally healed sites in maxillary anterior and posterior regions. Patient‐ and implant‐related data were collected from electronic dental records including additional augmentation procedures performed before or during implant placement and surgical complications. Cumulative survival rate was assessed using Kaplan–Meier method. The annual peri‐implant marginal bone loss between the two groups was compared using the Mann–Whitney U test. Results The follow‐up period was 24.4 ± 18.1 months (mean ± standard deviation) for ridge‐preserved sites and 45.7 ± 29.6 months for naturally healed sites. Sinus augmentation was performed at similar frequencies in the two groups, but lateral approach was applied significantly more at naturally healed sites (37.2%) than ridge‐preserved sites (8.3%, p ≤ .001). There was no intergroup difference in the cumulative survival rate or annual peri‐implant marginal bone loss. Conclusion Ridge preservation can be clinically beneficial for minimizing the invasiveness of implant surgery by simplifying the procedure when sinus augmentation is expected in the maxilla.

Histological and Radiological Features of a Four-Phase Injectable Synthetic Bone Graft in Guided Bone Regeneration: A Case Report

“…More specifically, significant changes in alveolar ridge dimensions occur mostly during the first year following extraction [5][6][7]. Therefore, an augmentation procedure before implant placement is recommended in order to ensure adequate alveolar bone volume [8][9][10][11][12].…”

Feasibility and needs for simultaneous or staged bone augmentation to place prosthetically guided dental implants after extraction or exfoliation of first molars due to severe periodontitis

“…These data were generated in the absence of any ridge preservation or socket healing enhancement interventions and raise the question of the potential impact of treatments that could modify spontaneous healing and decrease the proportion of sites requiring extensive surgery for first molar replacement in severely compromised stage III or IV periodontitis patients. The key objective of such procedures seems to be the reduction of the need for LWSA as highlighted in recent studies (Park et al., 2020; Rasperini et al., 2010). In our observations, the reduction in residual bone height by periodontal destruction accompanied by a superiorly curving sinus floor around the tooth roots seemed to result in the greatest reduction in residual alveolar height post‐extraction.…”

Evaluation of the mechanical properties and clinical efficacy of biphasic calcium phosphate-added collagen membrane in ridge preservation

“…Post-extraction dimensional changes decreased when ridge preservation was performed [ 3 10 ]. With the help of ridge preservation, more favorable clinical outcomes can be expected, and an ideal implant position for an esthetically/functionally acceptable restoration can be achieved [ 11 12 ]. Various bone graft materials and surgical methods have been introduced to increase the predictability of clinical results.…”