Mini-implant selection protocol applied to MARPE.

Area of Science:

• Orthodontics and Dentofacial Orthopedics
• Craniofacial Surgery

Background:

• Rapid maxillary expansion (RME) is standard for correcting transverse discrepancies in children and adolescents.
• Miniscrew-assisted rapid palatal expansion (MARPE) was developed to enhance skeletal expansion and mitigate dentoalveolar effects in more mature patients.
• The MARPE technique aims to optimize orthopedic outcomes by utilizing miniscrews for anchorage.

Purpose of the Study:

• To present a systematic protocol for selecting miniscrews for MARPE procedures.
• To analyze cone-beam computed tomography (CBCT) variables for optimal miniscrew placement.
• To guide clinicians in achieving better clinical performance with MARPE.

Main Methods:

• Evaluation of cone-beam computed tomographies (CBCT) to assess anatomical parameters.
• Analysis of bone and soft tissue thicknesses in the palatal region.
• Consideration of miniscrew fixation ring placement relative to anatomical structures.

Main Results:

• Identification of key CBCT-derived variables for miniscrew selection in MARPE.
• Understanding the relationship between tissue thickness and miniscrew stability.
• Development of criteria for optimizing miniscrew placement to maximize skeletal expansion.

Conclusions:

• A systematic CBCT-based protocol can guide miniscrew selection for MARPE.
• Proper miniscrew placement is crucial for successful MARPE outcomes.
• This protocol aims to improve the predictability and efficacy of MARPE in individuals with advanced skeletal maturation.