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Int J Clin Exp Med. 2015 Feb 15;8(2):2385-91. eCollection 2015.

Three-D imaging of dental alveolar bone change after fixed orthodontic treatment in patients with periodontitis.

Author information

1
Department of Oral Surgery, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai Key Laboratory of Stomatology Shanghai, P. R. China.
2
Center of Craniofacial Orthodontics, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University, School of Medicine, Shanghai Key Laboratory of Stomatology Shanghai, P. R. China.
3
Department of Stomatology, Second Affiliated Hospital, College of Medicine, Zhejiang University P. R. China.

Abstract

OBJECTIVES:

The objective of this study was to radiographically quantify bone height and bone density in patients with periodontitis after fixed orthodontic treatment using cone beam computed tomography (CBCT).

MATERIALS AND METHODS:

A total of 81 patients including 40 patients with chronic periodontitis (group 1) and 41 patients with normal periodontal tissues (group 2) were selected. CBCT scanning for anterior teeth were taken before and after orthodontic treatment. Measurements of bone height and bone density were performed using CBCT software.

RESULTS:

The group 1 presented a statistically lesser bone density and bone height when compared to group 2 before treatment. There was a significant loss of bone density for both groups after orthodontic treatment, but bone density loss was significantly greater in the group 1. There was no statistically significant bone height change in two groups after treatment.

CONCLUSIONS:

This study demonstrated that orthodontic treatment can preserve bone height but not capable of maintaining bone density, especially for patients with periodontitis. It is indicated that the change of bone density may be more susceptible than that of bone height when radiographically evaluating bone status under this combined periodontal and orthodontic therapy.

KEYWORDS:

CBCT; alveolar bone density; alveolar height; periodontal disease; tooth movement

PMID:
25932177
PMCID:
PMC4402824

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