Evaluating Change of Marginal Bone Height with Cone-Beam Computed Tomography Following Surgical Treatment with Guided Tissue Regeneration (Bone Grafting) or Access Flap Alone: A Retrospective Study.

In-Kyung Lee,Sang-Heon Jeong,Hyun-Seok Choi,Jung-Tae Lee

doi:10.3390/medicina57090869

In-Kyung Lee, Sang-Heon Jeong + Show 2 more

Open Access

https://doi.org/10.3390/medicina57090869

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Abstract

Background and Objectives: This study aimed to evaluate the change of bone height following treatment of human intrabony defects with guided tissue regeneration (GTR) with bone grafting or access flap alone by cone-beam computed tomography (CBCT) scan. Materials and methods: This study was conducted as a retrospective longitudinal study. In this study, a total of 2281 teeth sites were included: the GTR group had 1210 sites, and the Flap group had 1071 sites. In the GTR group, demineralized freeze-dried bone (DFDBA) particles in combination with resorbable collagen membrane were used. No regenerative material was applied to the Flap group. CBCT images were taken twice at baseline and at least 2.5 months postoperatively. Bone heights were measured using software on CBCT images. Results: The bony change between the GTR and Flap groups was significantly different (p = 0.00001). Both males and females in the GTR group had smaller bone loss than in the Flap group. In age groups, significant differences of bony height between the GTR and Flap groups were observed in the subgroups consisting of those 29–45 and 46–53 years old. The non-smoking subjects in the GTR group had higher bone heights than those in the Flap group. In the absence of systemic disease and medicine, bone formation was higher in the GTR group than in the Flap group. In terms of oral position, the #14–17, #34–37, and #44–47 subgroups of the GTR group showed higher levels of bone heights than those of the Flap group. Conclusions. The results of this study indicated that the GTR procedure offers the additional benefit of higher bone heights than the Flap procedure does.

Highlights

The main objective of periodontal surgery is to contribute to the long-term preservation of the periodontium by facilitating plaque removal and infection control
There was an association between mean heights of alveolar bone of guided tissue regeneration (GTR) and Flap in hepatitis
In the absence of systemic disease, bone formation was higher in the GTR group than in the Flap group (0.02 ± 1.31: GTR vs. 0.22 ± 1.05: Flap, p = 0.00001)

Summary

Introduction

The main objective of periodontal surgery is to contribute to the long-term preservation of the periodontium by facilitating plaque removal and infection control. Sculean et al and Stavropoulos et al investigated that GTR had more increased clinical attachment level (CAL) gains compared with flap alone in clinical studies [5,6]. This study aimed to evaluate the change of bone height following treatment of human intrabony defects with guided tissue regeneration (GTR) with bone grafting or access flap alone by cone-beam computed tomography (CBCT) scan. Results: The bony change between the GTR and Flap groups was significantly different (p = 0.00001). In terms of oral position, the #14–17, #34–37, and #44–47 subgroups of the GTR group showed higher levels of bone heights than those of the Flap group. The results of this study indicated that the GTR procedure offers the additional benefit of higher bone heights than the Flap procedure does

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Discussion

Conclusion