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双生牙临床表现为一个正常牙和一个额外牙的联合,临床上较少见。伴随石则更少见,我科诊治一例,患者伍某,男,22岁,门诊号029087,因左下后牙持续胀痛阵发性加剧并向左颞、耳部放射2月余,对温度刺激不敏感,对症服药效果不佳。检查:36、37间有一锥形多生牙,37被挤呈颊舌向错位,X线片因影像重叠,牙根及髓腔形态不清,临床初诊为牙齿形态异常。局麻下拔除37及锥形牙,发现系37双生牙冠根互相联合,离体牙拍X线片示锥形牙有单独完整的髓腔和根管,双生牙髓腔内有大量团状髓石。剖开牙齿髓室腔和根髓腔内有大量钙化髓石。拔除后症状完全消失。
Twins clinical manifestations of a normal tooth and a combination of extra teeth, clinically rare. Accompanied by the stone is even more rare, our department a case of diagnosis and treatment, the patient Wumou, male, 22 years old, outpatient number 029087, due to continuous pain in the lower left posterior teeth paroxysmal aggravating and to the left temporal, ear radiation for more than 2 months, Not sensitive, symptomatic medication ineffective. Check: 36,37 there is a cone-shaped multiple teeth, 37 was crowded buccal-lingual dislocation, X-ray images overlap, root and marrow cavity is unclear, clinical diagnosis of abnormal tooth morphology. Under local anesthesia, 37 and conical teeth were removed, and 37 pairs of condylar crowns were found to be united with each other. Ex vivo dental radiographs showed that the conical teeth had a complete and complete pulp cavity and root canal. Stone marrow. Cut open the pulp chamber cavity and the medullary cavity has a large number of medulla. After the removal of symptoms completely disappeared.