Department of Stomatology, Changzheng Hospital, Second Military Medical University, Shanghai, China.
Aust Dent J. 2012 Dec;57(4):511-4. doi: 10.1111/j.1834-7819.2012.01725.x. Epub 2012 Sep 11.
Hypercementosis may be idiopathic or secondary to either local factors or systemic disorders. However, periodontitis as an aetiologic factor in the formation of hypercementosis has never been documented in the literature.
We report a case of periodontitis with hypercementosis, affecting the right mandibular second premolar and first molar teeth.
Our patient's maxillary was edentulous and the mandibular teeth #47, #43, #42, #41, #31, #32, #33, #36, #37 were missing. The right mandibular second premolar and first molar had first-degree mobility and second-degree mobility respectively. Periodontal pocket depth in the right mandibular second premolar and first molar were 5 mm and 8 mm at buccal pockets, 6 mm and 9 mm at distal pockets, respectively. The radiograph revealed that the roots of both teeth were grossly thickened and blunted. The right mandibular first molar was extracted and sent for histopathological examination. The definitive diagnoses were periodontitis and hypercementosis.
The concomitant occurrence of periodontitis and hypercementosis in our patient suggests that periodontitis is a predisposing factor for hypercementosis development. This condition may be associated with various local stimuli and possible compensative phenomenon.
骨质过度增生可能是特发性的，也可能继发于局部因素或全身疾病。然而，牙周炎作为骨质过度增生的病因在文献中从未被记录过。
我们报告了一例牙周炎伴骨质过度增生的病例，影响右侧下颌第二前磨牙和第一磨牙。
我们的患者上颌无牙，下颌 47、43、42、41、31、32、33、36、37 缺失。右侧下颌第二前磨牙和第一磨牙分别有一度松动和二度松动。右侧下颌第二前磨牙和第一磨牙颊侧牙周袋深度分别为 5mm 和 8mm，远中牙周袋深度分别为 6mm 和 9mm。放射线片显示两牙的牙根明显增厚变钝。右侧下颌第一磨牙被拔除并进行组织病理学检查。最终诊断为牙周炎和骨质过度增生。
我们的患者同时发生牙周炎和骨质过度增生，提示牙周炎是骨质过度增生发展的一个诱发因素。这种情况可能与各种局部刺激和可能的代偿现象有关。
