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Involving supernumerary teeth in "qpdb" teeth numbering system.
Rami Rabie Shehabeldin1,2, Aya Maher Elgamal3, Kaber Osama Khafagy3
1Oral Biology Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt, 35516.
Scientific Reports
|July 3, 2026
Summary
A new numbering system is proposed for supernumerary teeth, which are extra teeth found in the mouth. This standardized method aims to improve communication and reduce misinterpretation among dental professionals.
Area of Science:
- Dentistry
- Oral Surgery
- Dental Anatomy
Background:
- Supernumerary teeth are extra-dentition or tooth-like structures found in the oral cavity.
- Current dental numbering systems lack standardization for identifying supernumerary teeth, leading to potential misinterpretation.
- A significant gap exists in standardized practice for identifying these extra teeth.
Purpose of the Study:
- To evaluate dental practitioners' experience with supernumerary teeth and existing identification systems.
- To address the limitations of current methods in providing a standardized approach for supernumerary tooth identification.
- To present a novel modification to the "qpdb" tooth numbering system for precise supernumerary tooth designation.
Main Methods:
- A pre-study questionnaire was administered to 235 dental practitioners (dentists, interns, clinical dental students).
- The questionnaire assessed prior experience with supernumerary teeth and the numbering systems utilized for their identification.
- A novel addition to the "qpdb" system was developed, introducing the digit zero (0) for designation.
Main Results:
- Only 32% of surveyed dental practitioners reported using any system to identify supernumerary teeth.
- A substantial majority (68%) had no experience with existing identification systems, confirming a lack of standardized practice.
- The proposed modification introduces a clear designation for supernumerary teeth within the "qpdb" system.
Conclusions:
- There is a clear need for a new, standardized numbering system for supernumerary teeth.
- The proposed "qpdb" system modification offers a precise, consistent, and communicable method for identifying extra teeth.
- This novel approach aims to enhance collaboration and reduce misinterpretation among dental professionals regarding supernumerary teeth.
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