{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T17:15:11Z","timestamp":1792430111953,"version":"4.5.0"},"reference-count":23,"publisher":"Springer Science and Business Media LLC","issue":"2","license":[{"start":{"date-parts":[[2024,2,9]],"date-time":"2024-02-09T00:00:00Z","timestamp":1707436800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,2,9]],"date-time":"2024-02-09T00:00:00Z","timestamp":1707436800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Oral Maxillofac Surg"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The purpose of this study was to determine how the surgeon\u2019s decision to perform a mandibular third molar coronectomy or surgical removal is associated with the impaction pattern as classified using Pell and Gregory or Winter\u2019s system.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This observational, cross-sectional study was conducted on 813 mandibular third molars belonging to 565 patients. All patients were referred for removal of the mandibular third molar and had radiographic signs indicating a close relationship with the inferior alveolar nerve. Panoramic images were classified according to the impaction pattern.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A coronectomy was performed on 492 (60.5%) mandibular third molars.<\/jats:p>\n                    <jats:p>\n                      Most impacted mandibular third molars were class IIB with a mesioangular inclination. A significant association was found between the Pell and Gregory classification and the surgeon\u2019s choice (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.002). Winter\u2019s classification was not significantly associated with surgeon choice (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.425).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Mandibular third molar coronectomy is chosen more frequently than surgical removal if molars are class III and position B.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial registration number<\/jats:title>\n                    <jats:p>Not applicable.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10006-024-01222-5","type":"journal-article","created":{"date-parts":[[2024,2,9]],"date-time":"2024-02-09T07:02:22Z","timestamp":1707462142000},"page":"885-892","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Association of indications for mandibular third molar coronectomy and the Pell and Gregory and the Winter classification systems"],"prefix":"10.1007","volume":"28","author":[{"given":"Rashida N.","family":"Simons","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mitchell S.","family":"Gonesh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacco G.","family":"Tuk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"de Lange","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jerome A.","family":"Lindeboom","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,2,9]]},"reference":[{"key":"1222_CR1","doi-asserted-by":"publisher","first-page":"1486","DOI":"10.1016\/j.joms.2007.03.023","volume":"65","author":"P Libersa","year":"2007","unstructured":"Libersa P, Savignat M, Tonnel A (2007) Neurosensory disturbances of the inferior alveolar nerve: a retrospective study of complaints in a 10-year period. J Oral Maxillofac Surg 65:1486\u20131489","journal-title":"J Oral Maxillofac Surg"},{"key":"1222_CR2","doi-asserted-by":"publisher","first-page":"320","DOI":"10.1016\/j.ijom.2009.11.010","volume":"39","author":"L Cheung","year":"2010","unstructured":"Cheung L, Leung Y, Chow L, Wong M, Chan E, Fok Y (2010) Incidence of neurosensory deficits and recovery after lower third molar surgery: a prospective clinical study of 4338 cases. Int J Oral Maxillofac Surg 39:320\u2013326","journal-title":"Int J Oral Maxillofac Surg"},{"key":"1222_CR3","doi-asserted-by":"publisher","unstructured":"Sarikov R, Juodzbalys G (2014) Inferior alveolar nerve injury after mandibular third molar extraction: a literature review. J Oral Maxillofac Res 5(4):e1. https:\/\/doi.org\/10.5037\/jomr.2014.5401","DOI":"10.5037\/jomr.2014.5401"},{"issue":"4","key":"1222_CR4","doi-asserted-by":"publisher","first-page":"306","DOI":"10.1054\/ijom.2001.0057","volume":"30","author":"D G\u00fclicher","year":"2001","unstructured":"G\u00fclicher D, Gerlach K (2001) Sensory impairment of the lingual and inferior alveolar nerves following removal of impacted mandibular third molars. Int J Oral Maxillofac Surg 30(4):306\u2013312","journal-title":"Int J Oral Maxillofac Surg"},{"issue":"3","key":"1222_CR5","doi-asserted-by":"publisher","first-page":"259","DOI":"10.1016\/j.tripleo.2004.06.001","volume":"99","author":"E Queral-Godoy","year":"2005","unstructured":"Queral-Godoy E, Valmaseda-Castell\u00f3n E, Berini-Ayt\u00e9s L, Gay-Escoda C (2005) Incidence and evolution of inferior alveolar nerve lesions following lower third molar extraction. Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol 99(3):259\u2013264","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol"},{"issue":"4","key":"1222_CR6","doi-asserted-by":"publisher","first-page":"214","DOI":"10.1016\/S0901-5027(05)80638-1","volume":"22","author":"S Schultze-Mosgau","year":"1993","unstructured":"Schultze-Mosgau S, Reich R (1993) Assessment of inferior alveolar and lingual nerve disturbances after dentoalveolar surgery, and of recovery of sensitivity. Int J Oral Maxillofac Surg 22(4):214\u2013217","journal-title":"Int J Oral Maxillofac Surg"},{"issue":"4","key":"1222_CR7","doi-asserted-by":"publisher","first-page":"377","DOI":"10.1067\/moe.2001.118284","volume":"92","author":"E Valmaseda-Castell\u00f3n","year":"2001","unstructured":"Valmaseda-Castell\u00f3n E, Berini-Ayt\u00e9s L, Gay-Escoda C (2001) Inferior alveolar nerve damage after lower third molar surgical extraction: a prospective study of 1117 surgical extractions. Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol 92(4):377\u2013383","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol"},{"issue":"8","key":"1222_CR8","doi-asserted-by":"publisher","first-page":"e72891","DOI":"10.1371\/journal.pone.0072891","volume":"8","author":"YY Leung","year":"2013","unstructured":"Leung YY, Lee TCP, Ho SMY, Cheung LK (2013) Trigeminal neurosensory deficit and patient reported outcome measures: the effect on life satisfaction and depression symptoms. PLoS One 8(8):e72891","journal-title":"PLoS One"},{"issue":"1","key":"1222_CR9","doi-asserted-by":"publisher","first-page":"7","DOI":"10.1016\/j.bjoms.2004.09.002","volume":"43","author":"T Renton","year":"2005","unstructured":"Renton T, Hankins M, Sproate C, McGurk M (2005) A randomised controlled clinical trial to compare the incidence of injury to the inferior alveolar nerve as a result of coronectomy and removal of mandibular third molars. Br J Oral Maxillofac Surg 43(1):7\u201312","journal-title":"Br J Oral Maxillofac Surg"},{"key":"1222_CR10","doi-asserted-by":"publisher","first-page":"20","DOI":"10.1016\/0266-4356(90)90005-6","volume":"28","author":"JP Rood","year":"1990","unstructured":"Rood JP, Shehab BA (1990) The radiological prediction of inferior alveolar nerve injury during third molar surgery. Br J Oral Maxillofac Surg 28:20\u201325","journal-title":"Br J Oral Maxillofac Surg"},{"issue":"1","key":"1222_CR11","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1016\/j.joms.2004.05.217","volume":"63","author":"M Sedaghatfar","year":"2005","unstructured":"Sedaghatfar M, August MA, Dodson TB (2005) Panoramic radiographic findings as predictors of inferior alveolar nerve exposure following third molar extraction. J Oral Maxillofac Surg 63(1):3\u20137","journal-title":"J Oral Maxillofac Surg"},{"key":"1222_CR12","doi-asserted-by":"publisher","unstructured":"Lima CJ , Silva LCF, Melo MRS, Santos JAAS, Santos TS (2012) Evaluation of the agreement by examiners according to classifications of third molars.\u00a0 Med Oral Patol Oral Cir Bucal 17(2):e281\u2013286. https:\/\/doi.org\/10.4317\/medoral.17483","DOI":"10.4317\/medoral.17483"},{"key":"1222_CR13","first-page":"325","volume":"39","author":"GJ Pell","year":"1933","unstructured":"Pell GJ, Gregory GT (1933) Impacted mandibular third molars: classification and modified technique for removal. Dent Dig 39:325\u2013338","journal-title":"Dent Dig"},{"key":"1222_CR14","volume-title":"Impacted mandibular third molar","author":"GB Winter","year":"1926","unstructured":"Winter GB (1926) Impacted mandibular third molar. American Medical Book Co., St. Louis, MO, USA"},{"issue":"2","key":"1222_CR15","doi-asserted-by":"publisher","first-page":"185","DOI":"10.14219\/jada.archive.1980.0074","volume":"100","author":"DP Kipp","year":"1980","unstructured":"Kipp DP, Goldstein BH, Weiss WW (1980) Dysesthesia after mandibular third molar surgery: a retrospective study and analysis of 1,377 surgical procedures. J Am Dent Assoc 100(2):185\u2013192","journal-title":"J Am Dent Assoc"},{"issue":"3","key":"1222_CR16","doi-asserted-by":"publisher","first-page":"312","DOI":"10.14219\/jada.archive.2004.0179","volume":"135","author":"G Monaco","year":"2004","unstructured":"Monaco G, Montevecchi M, AlessandriBonetti G, Gatto MRA, Checchi L (2004) Reliability of panoramic radiography in evaluating the topographic relationship between the mandibular canal and impacted third molars. J Am Dent Assoc 135(3):312\u2013318","journal-title":"J Am Dent Assoc"},{"issue":"11","key":"1222_CR17","doi-asserted-by":"publisher","first-page":"2222.e1","DOI":"10.1016\/j.joms.2019.06.004","volume":"77","author":"L Khojastepour","year":"2019","unstructured":"Khojastepour L, Khaghaninejad MS, Hasanshahi R, Forghani M, Ahrari F (2019) Does the winter or pell and Gregory classification system indicate the apical position of impacted mandibular third molars? J Oral Maxillofac Surg 77(11):2222.e1-2222.e9","journal-title":"J Oral Maxillofac Surg"},{"issue":"6","key":"1222_CR18","doi-asserted-by":"publisher","first-page":"802","DOI":"10.1016\/j.ijom.2018.01.015","volume":"47","author":"Y Leung","year":"2018","unstructured":"Leung Y, Cheung K (2018) Root migration pattern after third molar coronectomy: a long-term analysis. Int J Oral Maxillofac Surg 47(6):802\u2013808","journal-title":"Int J Oral Maxillofac Surg"},{"issue":"7","key":"1222_CR19","doi-asserted-by":"publisher","first-page":"1303","DOI":"10.1016\/j.joms.2006.10.028","volume":"65","author":"Y Nakagawa","year":"2007","unstructured":"Nakagawa Y, Ishii H, Nomura Y, Watanabe NY, Hoshiba D, Kobayashi K, Ishibashi K (2007) Third molar position: reliability of panoramic radiography. J Oral Maxillofac Surg 65(7):1303\u20131308","journal-title":"J Oral Maxillofac Surg"},{"issue":"1","key":"1222_CR20","doi-asserted-by":"publisher","first-page":"9","DOI":"10.5624\/isd.20200095","volume":"51","author":"WJP Nunes","year":"2021","unstructured":"Nunes WJP, Vieira AL, De Abreu Guimar\u00e3es LD, Alc\u00e2ntara CEPD, Verner FS, Carvalho MFD (2021) Reliability of panoramic radiography in predicting proximity of third molars to the mandibular canal: a comparison using cone-beam computed tomography. Imaging Sci Dent 51(1):9","journal-title":"Imaging Sci Dent"},{"issue":"2","key":"1222_CR21","doi-asserted-by":"publisher","first-page":"78","DOI":"10.1016\/0266-4356(92)90074-S","volume":"30","author":"F Carmichael","year":"1992","unstructured":"Carmichael F, McGowan D (1992) Incidence of nerve damage following third molar removal: a west of Scotland Oral surgery research group study. Br J Oral Maxillofac Surg 30(2):78\u201382","journal-title":"Br J Oral Maxillofac Surg"},{"issue":"5","key":"1222_CR22","doi-asserted-by":"publisher","first-page":"547","DOI":"10.1016\/j.tripleo.2010.06.010","volume":"111","author":"HT L\u00fcbbers","year":"2011","unstructured":"L\u00fcbbers HT, Matthews F, Damerau G, Kruse AL, Obwegeser JA, Gr\u00e4tz KW, Eyrich GK (2011) Anatomy of impacted lower third molars evaluated by computerized tomography: is there an indication for 3-dimensional imaging? Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol 111(5):547\u2013550","journal-title":"Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol"},{"issue":"2","key":"1222_CR23","doi-asserted-by":"publisher","first-page":"83","DOI":"10.1259\/dmfr\/28403350","volume":"33","author":"D Schulze","year":"2004","unstructured":"Schulze D, Heiland M, Thurmann H, Adam G (2004) Radiation exposure during midfacial imaging using 4- and 16-slice computed tomography, cone beam computed tomography systems and conventional radiography. Dentomaxillofac Radiol 33(2):83\u201386","journal-title":"Dentomaxillofac Radiol"}],"container-title":["Oral and Maxillofacial Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10006-024-01222-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s10006-024-01222-5\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s10006-024-01222-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,2]],"date-time":"2024-06-02T23:15:15Z","timestamp":1717370115000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s10006-024-01222-5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,2,9]]},"references-count":23,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2024,6]]}},"alternative-id":["1222"],"URL":"https:\/\/doi.org\/10.1007\/s10006-024-01222-5","relation":{"has-preprint":[{"id-type":"doi","id":"10.21203\/rs.3.rs-3738721\/v1","asserted-by":"object"}]},"ISSN":["1865-1569"],"issn-type":[{"value":"1865-1569","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,2,9]]},"assertion":[{"value":"11 December 2023","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"31 January 2024","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"9 February 2024","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and\/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Informed consent was obtained from all individual participants included in the study.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed consent"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}