odontogram

An odontogram is a graphical representation used in dentistry to record the condition of a patient’s dentition and surrounding tissues. It typically takes the form of a schematic diagram of the upper and lower jaws, with each tooth identified and assessed. Odontograms are used to support diagnosis, treatment planning, and communication among dental professionals.

Data in an odontogram include tooth number or symbol, the presence or absence of a tooth, and the status of each tooth with respect to caries, restorations, endodontic work, and prosthetic appliances. Common notations indicate decayed teeth, filled teeth, crowns, bridges, implants, and extracted teeth. Symbols or shading may also reflect periodontal status, mobility, and planned procedures. Notation systems vary by region and practice, with formats based on the FDI two-digit system or the universal numbering system, and with differences in color codes or shapes.

Modern odontograms may be recorded on paper or as part of electronic health records. During a clinical visit, the dentist updates the chart to reflect findings and planned care, allowing clinicians to track changes over time and to coordinate multi-visit treatment. Odontograms are also used in public health surveys and for legal documentation of a patient’s dental status.

Limitations include dependence on consistent notation and careful data entry, potential variability between practitioners, and the need to interpret the chart in conjunction with radiographs and clinical notes. While highly useful for visual communication and planning, an odontogram does not replace radiographic assessment or a complete clinical examination.