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Currently used numbering systems lack a standardized method for identifying supernumerary teeth which might result in misinterpretation and hinder effective collaboration among dental practitioners. A pre-study questionnaire was conducted on 235 dental practitioners, including dentists, interns and clinical dental students to evaluate their previous experience with supernumerary teeth and the numbering systems used to identify them. Of the respondents, only 32% reported using systems to identify supernumeraries while 68% had no experience with any of systems confirming a significant gap in standardized practice highlighting the need for development of a new numbering system. This manuscript presents a novel addition to the existing \u201cqpdb\u201d tooth numbering system for identification of supernumerary teeth, addressing the limitations of existing methods that fail to provide a standardized approach for identifying these extra teeth. The modification introduces the digit zero (0) placed in combination with the tooth number mesially adjacent to the supernumerary (the identifier tooth) as a designation. This approach enables more precise, consistent and communicable identification of supernumerary teeth addressing the limitations of currently available numbering systems.<\/jats:p>","DOI":"10.1038\/s41598-026-58563-2","type":"journal-article","created":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T10:24:05Z","timestamp":1783074245000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Involving supernumerary teeth in \u201cqpdb\u201d teeth numbering system"],"prefix":"10.1038","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-8022-4790","authenticated-orcid":false,"given":"Rami Rabie","family":"Shehabeldin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aya Maher","family":"Elgamal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaber Osama","family":"Khafagy","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohamed Ehab","family":"Embaby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5642-2075","authenticated-orcid":false,"given":"Mahitabe","family":"Elgamily","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,3]]},"reference":[{"key":"58563_CR1","doi-asserted-by":"publisher","first-page":"e48","DOI":"10.1016\/j.tripleo.2008.01.035","volume":"105","author":"RP Anthonappa","year":"2008","unstructured":"Anthonappa, R. 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