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Prevention of Bone Resorption by HA/β-TCP + Collagen Composite After Tooth Extraction: A Case Series

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Prevention of Bone Resorption by HA/β-TCP + Collagen Composite After Tooth Extraction: A Case Series

Hsi Kuei Lin et al. Int J Environ Res Public Health.

Abstract

After tooth extraction, alveolar ridge loss due to resorption is almost inevitable. Most of this bone loss occurs during the first six months after the extraction procedure. Many studies have indicated that applying socket-filling biomaterials after extraction can effectively reduce the resorption rate of the alveolar ridge. The purpose of this study was to investigate the clinical efficacy of the application of a hydroxyapatite/β-tricalcium plus collagen (HA/β-TCP + collagen) dental bone graft in dental sockets immediately after tooth extraction, so as to prevent socket resorption. The study was conducted on 57 extraction sockets located in the mandible and maxilla posterior regions in 51 patients. HA/β-TCP + collagen was inserted into all of the dental sockets immediately after extraction, and was covered with a flap. Follow-up was performed for three months after extraction, using radiographs and stents for the vertical and horizontal alveolar ridge measurements. A minimal alveolar bone width reduction of 1.03 ± 2.43 mm (p < 0.05) was observed. The height reduction showed a slight decrease to 0.62 ± 1.46 mm (p < 0.05). Radiographically, the bone height was maintained after three months, indicating a good HA/β-TCP + collagen graft performance in preserving alveolar bone. In conclusion, the HA/β-TCP + collagen graft demonstrated adequate safety and efficacy in dental socket preservation following tooth extraction.

Keywords: HA/β-TCP + collagen composite; dental sockets preservation; periodontal bone loss; tooth extraction.

Conflict of interest statement

The authors declare that there is no conflict of interests regarding the publication of this paper.

Figures

Figure 1
Figure 1
Surgical socket preservation with composite of hydroxyapatite/β-tricalcium plus collagen (HA/β-TCP + collagen). (a) Preoperative appearance. (b) Appearance immediately after extraction. (c) Socket filled with an HA/β-TCP + collagen composite. (d) Appearance after suturing: complete socket closure.
Figure 2
Figure 2
Socket preservation with a composite of hydroxyapatite/β-tricalcium (HA/β-TCP) + collagen: flow diagram of the study.
Figure 3
Figure 3
Changes in the alveolar ridge. Alveolar ridge height measurement.
Figure 4
Figure 4
Alveolar ridge width preservation. The efficacy of the composite of HA/β-TCP + collagen in preserving the alveolar bone width was good. * Significant difference between preoperative and later measurements: p < 0.05.
Figure 5
Figure 5
Alveolar ridge height preservation. The composite hydroxyapatite/β-tricalcium (HA/β-TCP) + collagen for alveolar bone height preservation was always slightly more efficacious after the preoperative measurement. * Statistically significant difference between preoperative and postoperative measurements: p < 0.05.
Figure 6
Figure 6
Radiographic measurement of the alveolar ridge height preservation. HA/β-TCP + collagen is efficacious in preserving the alveolar bone height, with no statistically significant difference between the postoperative measurements and the preoperative measurement (p > 0.05).
Figure 7
Figure 7
Alveolar ridge height preservation. (A) Preoperative. (B) Three months after extraction.

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