27颊侧罕见多生牙尖的CBCT诊断与鉴别诊断
The diagnosis and antidiastole on supernumerary cusp of tooth by CBCT: a case report
目的 利用锥形束CT（Cone Beam Computer Tomography，CBCT）确诊27颊侧多生牙尖1例，并对其鉴别诊断、发生机制及CBCT的临床应用特点进行分析。 方法 本文根据口腔临床一般检查、口腔局部X线片并结合CBCT对患牙进行确诊；对多生牙尖、融合牙、双生牙、结合牙各自的特点及鉴别要点分析讨论。 结果 根据口腔临床一般检查、口腔局部X线片, 特别是应用CBCT确诊了1例左上第2磨牙颊侧多生牙尖。 结论 口腔辅助检查是临床上确诊口腔颌面部疾病的必要手段。CBCT具有扫描时间短、辐射剂量小、扫描灵活、分辨率高等优点，提高了各类口腔疾病的诊疗水平。
Objective To report a case of supernumerary cusp on the bucca of left maxillary second molar diagnosed by Cone Beam Computed Tomography(CBCT), and to analyze its genesis,diagnosis and antidiastole. The clinic application of CBCT is correspondingly discussed. Methods The supernumerary cusp was diagnosed by oral general examination, oral local X-rayand CBCT. The respective features of supernumerary cusp, fused teeth, geminated teeth and concresence of teeth, especially differential points between them were discussed. Results A case of supernumerary cusp on the bucca of the left maxillary second molar was diagnosed definitely by the combined application of oral general examination, periapical radiograph and CBCT. Conclusion Oral accessory examinations are important, sometimes even necessary in diagnosing oral-maxillofacial diseases such as supernumerary cusp. CBCT has many advantages, such as short scanning time, low ionizing radiation, and high resolution. Therefore, CBCT can improve accuracy of diagnosis, which is why it has been applied in various areas of dentistry.
锥形束CT / 上颌第2磨牙 / 多生牙尖 / 融合牙 / 双生牙 / 结合牙
Cone beam computed tomography / Maxillary second molar / Supernumerary cusp / Fused tooth / Geminated tooth / Concresence tooth
[1] Sachdeva GS, Malhotra D, Sachdeva LT, et al. Endodontic management of mandibular central incisor fused to a supernumerary tooth associated with a talon cusp: a case report[J]. Int Endod J, 2012, 45(6):590-596.
[2] Chandra B, Das M. Accessory central cusp in the maxillary second primary molars: a rare entity among the rare[J]. Int J Clin Pediatr Dent, 2014, 7(3):202-205.
[3] 张良, 冯露, 杨斌.右侧上颌第二磨牙颊侧发育沟处畸形尖一例[J].牙体牙髓牙周病学杂志, 2014, 7(3):202-205.
[4] 陈小璇, 刘国强. 上颌第二磨牙颊侧双尖畸形1例[J]. 牙体牙髓牙周病学杂志, 2011, 21(6):351.
[5] Von Wilmowsky C, Bergauer B, Nkenke E, et al. A new, highly precise measurement technology for the in vitro evaluation of the accuracy of digital imaging data[J]. J Craniomaxillofac Surg, 2015, 43(8):1335-1339.
[6] Liedke GS, SpinNeto R, Vizzotto MB, et al. Diagnostic accuracy of cone beam computed tomography sections with various thicknesses for detecting misfit between the tooth and restoration in metal-restored teeth[J]. Oral Surg Oral Med Oral Pathol Oral Radiol, 2015, 120(2):131-137.
[7] Steinbock N, Wigler R, Kaufman AY, et al. Fusion of central incisors with supernumerary teeth: a 10-year follow-up of multidisciplinary treatment[J]. J Endod, 2014, 40(7):1020-1024.
[8] Mallineni SK, Panampally GK, Chen Y, et al. Mandibular talon cusps: a systematic review and data analysis[J]. J Clin Exp Dent, 2014, 6(4):408-413.
[9] Cunha RS, Junaid A, Mello I. Unilateral fusion of a supernumerary tooth to a maxillary permanent lateral incisor: a report of a rare case[J]. J Endod, 2015, 41(3):420-423.
[10]Rajesh Ebenezar A, Venkatesh A, Mary AV, et al. An unusual occurrence of bilaterally geminated mandibular second premolars resulting in premolar molarization: a case report[J]. J Conserv Dent, 2013, 16(6):582-584.
[11]Foran D, Komabayashi T, Lin LM. Concrescence of permanent maxillary second and third molars: case report of non-surgical root canal treatment[J]. J Oral Sci, 2012, 54(1):133-136.
[12] Bargale S, Sagari S, Purohit S, et al. Labial and palatal talon cusp on the maxillary supernumerary tooth in a deciduous dentition[J]. BMJ Case Rep, 2014,18.
[13] Sachdeva SK, Verma P, Dutta S, et al. Facial talon cusp on mandibular incisor: a rare case report with review of literature[J]. Indian J Dent Res, 2014, 25(3):398-400.
[14]Zhu M, Liu C, Ren S, et al. Fusion of a supernumerary tooth to right mandibular second molar: a case report and literature review[J]. Int J Clin Exp Med, 2015, 8(8):11890-11895.
[15]Ohazama A, Johnson EB, Ota MS, et al. Lrp4 modulates extracellular intergration of cell signaling pathways in development[J]. Plos One, 2008, 3(12):e4092.
[16]Prabhu R, Chatra L, Shenai P, et al. Mandibular facial talon cusp: a rare case report[J]. Ann Med Health Sci Res, 2014, 4(Suppl 1):35-37.
[17] Liang RZ, Wu JT, Wu YN, et al. Bilateral maxillary fused second and third molars: a rare occurrence[J]. Int J Oral Sci, 2012, 4(4):231-234.
[18]Hattab FN. Double talon cusps on supernumerary tooth fused to maxillary central incisor: review of literature and report of case[J]. J Clin Exp Dent, 2014, 6(4):400-407.
[19] Shokri A, Baharvand M, Mortazavi H. The largest bilateral gemination of permanent maxillary central incisors: report of a case[J]. J Clin Exp Dent, 2013, 5(5):295-297.
[20] Gunduz K, Sumer M, Sumer AP, et al. Concrescence of a mandibular third molar and a supernumerary fourth molar: report of a rare case[J]. Br Dent J, 2006, 200(3):141-142.
[21] Kayaoglu G, Peker I, Gumusok M, et al. Root and canal symmetry in the mandibular anterior teeth of patients attending a dental clinic: CBCT study[J]. Braz Oral Res, 2015, 29:1-7.
[22]Venkatesh E. Stafne bone cavity and cone-beam computed tomography: a report of two cases[J]. J Korean Assoc Oral Maxillofac Surg, 2015, 41(3):145-148.
[23] Shang Q, Li Z, Qu H, et al. SU-E-J-74: Dosimetric advantages of adaptive radiotherapy for head and neck cancer are confirmed with weekly CBCT images[J]. Med Phys, 2015, 42(6):3281.
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