[Root growth after wisdom tooth transposition. Case documentation with proposal for a radiologic method to quantify...

Area of Science:

• Dentistry
• Radiology
• Orthodontics

Background:

• Assessing root development is crucial for evaluating dental treatments, particularly in cases of tooth transplantation.
• Panoramic radiographs (OPGs) are commonly used for dental imaging, but their accuracy for measuring root growth can be limited by magnification variations.
• A reliable method for quantitative root growth assessment on OPGs is needed.

Observation:

• A case report details the autotransplantation of a lower third molar with incomplete root formation.
• The study utilized serial panoramic radiographs (OPGs) taken 12 days and 20 months postoperatively.
• A novel method was developed to calculate root length relative to crown length using reproducible landmarks to minimize magnification errors.

Findings:

• The new method demonstrated a 2.7% variation in root length for a control tooth across OPGs, significantly lower than the 5.6% variation with direct measurement.
• The autotransplanted third molar showed approximately one-third root growth postoperatively, with no clinical signs of pathology.
• The introduced method proved more accurate for root growth assessment on OPGs than direct measurement.

Implications:

• This method enhances the accuracy of root growth assessment using panoramic radiographs.
• It provides a valuable tool for monitoring the success of dental procedures like tooth transplantation and evaluating root development.
• Improved radiographic assessment can lead to better clinical decision-making in restorative and regenerative dentistry.