舌侧正畸治疗对微生物参数和牙周状况的短期影响。一项初步研究。
Short-term influence of lingual orthodontic therapy on microbial parameters and periodontal status. A preliminary study.
机构信息
Department of Orthodontics, Hannover Medical School, Germany.
出版信息
Angle Orthod. 2010 May;80(3):480-4. doi: 10.2319/061109-330.1.
OBJECTIVE
To perform a preliminary study of the short-term effect of fixed, customized lingual orthodontic appliances on periodontal and microbial parameters.
MATERIALS AND METHODS
The sample comprised 20 subjects (6 males and 14 females) with a mean age of 22.3 years +/- 8.6 years. Before (T(0)) and 4 weeks after placement (T(1)) of custom-made lingual appliances on the lower teeth only, plaque index (PI), probing pocket depth (PPD), and bleeding on probing (BOP) were measured. A 16S rRNA-based polymerase chain reaction (PCR) method was used to detect Aggregatibacter actinomycetemcomitans ( Aa ) and Porphyromonas gingivalis ( Pg ) in the crevicular fluid. To compare periodontal parameters on bonded lingual (testing) and unbonded palatal (control) and labial (control) sites between T(0) and T(1), the Wilcoxon test was applied.
RESULTS
On the lingual aspects of bonded teeth, a significant increase of BOP (T(0): 23.4 +/- 22.5%; T(1): 46.2 +/- 23.5%; P = .001) and PI (T(0): 0.3 +/- 0.3; T(1): 1.0 +/- 0.7; P = .001) was observed, but no significant changes for PPD (T(0): 2.1 +/- 0.4 mm; T(1): 2.2 +/- 0.3 mm; P = .286) were found. On control sites, no significant changes were recorded for any periodontal parameter. Aa was found in 25% of the patients at baseline (5 subjects) and in 35% of the patients at T(1) (2 additional positive subjects), whereas Pg was found in 5% of the cohort at T(0) and at T(1) (same patient).
CONCLUSIONS
Even in the short term, insertion of fixed lingual appliances induced a worsening of periodontal parameters restricted to bonded lingual sites.
目的
初步研究固定定制舌侧矫治器对牙周和微生物参数的短期影响。
材料与方法
本研究纳入 20 名受试者（6 名男性和 14 名女性），平均年龄为 22.3 岁±8.6 岁。仅在下颌牙齿上放置定制舌侧矫治器前（T(0)）和 4 周后（T(1)），测量菌斑指数（PI）、探诊牙周袋深度（PPD）和探诊出血（BOP）。采用 16S rRNA 聚合酶链反应（PCR）方法检测龈沟液中的伴放线放线杆菌（Aa）和牙龈卟啉单胞菌（Pg）。为了比较 T(0)和 T(1)时粘结舌侧（测试）、未粘结腭侧（对照）和唇侧（对照）部位的牙周参数，应用 Wilcoxon 检验。
结果
在粘结牙的舌侧，BOP（T(0)：23.4%±22.5%；T(1)：46.2%±23.5%；P=.001）和 PI（T(0)：0.3%±0.3%；T(1)：1.0%±0.7%；P=.001）显著增加，但 PPD（T(0)：2.1%±0.4 mm；T(1)：2.2%±0.3 mm；P=.286）无显著变化。在对照部位，任何牙周参数均无显著变化。在基线时（5 名患者）有 25%的患者检出 Aa，在 T(1)时（另外 2 名阳性患者）有 35%的患者检出 Aa，而在 T(0)时和 T(1)时（同一名患者）有 5%的患者检出 Pg。
结论
即使在短期内，固定舌侧矫治器的插入也会导致仅粘结舌侧部位的牙周参数恶化。
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