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. 2009 May 11:1:27-34.
doi: 10.2147/ccide.s4632. Print 2009.

Radiolucency below the crown of mandibular horizontal incompletely impacted third molars and acute inflammation in men with diabetes

Minoru Yamaoka  1 , Yusuke Ono, Masahide Ishizuka, Kouichi Yasuda, Takashi Uematsu, Kiyofumi Furusawa
Affiliations

Radiolucency below the crown of mandibular horizontal incompletely impacted third molars and acute inflammation in men with diabetes

Minoru Yamaoka et al. Clin Cosmet Investig Dent. .

Abstract

Although mandibular third molar has a high risk of infection extending any complications, the influence of diabetes on radiolucency and acute inflammation in pericoronitis remains unclear. The present study was to evaluate whether radiolucency below the crown is related to acute inflammation in mandibular horizontal incompletely impacted third molars and to review the records of 140 men more than 45 years with and without diabetes. The odds ratio of exhibiting acute inflammation was 3.38 (95% CI: 1.13-10.16, p < 0.05) and that of exhibiting severe acute inflammation was 15.38 (95% CI: 3.56-66.49, p < 0.0001), indicating an association of acute pericoronitis in diabetes. The frequency of radiolucency below the crown and below the root in diabetics was similar to that in nondiabetics. However, the odds ratio of exhibiting both radiolucency below the crown and acute inflammation under the diabetic condition was 4.85 (95% CI: 1.60-14.73, p < 0.01), whereas that of diabetics showing both radiolucency below the root and acute inflammation was 0.46 (95% CI: 0.06-3.74, p = 0.74). Radiolucency below the crown and acute inflammation were associated with diabetes, but that below root and acute inflammation were not associated with diabetes, indicating that the region below the crown carries susceptibility to acute pericoronitis, whereas the periodontium shows a protective effect against acute pericoronitis.

Keywords: acute inflammation; diabetes; mandible; periodontium; radiolucency; third molar.

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Figures

Figure 1
Figure 1
Dental radiograph reveals radiolucency below crown but not below root in a 48-year-old man with acute pericoronitis without diabetes.
Figure 2
Figure 2
Dental radiograph reveals radiolucency below both crown and root in a 46-year-old man with acute pericoronitis without diabetes.
See this image and copyright information in PMC

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