Evaluation of Occlusal Force Following Rapid Maxillary Expansion Assisted by Piezocision in Adolescent Versus Young Adult Orthodontic Patients: A Prospective Clinical Study.
Evaluation of Occlusal Force Following Rapid Maxillary Expansion Assisted by Piezocision in Adolescent Versus Young Adult Orthodontic Patients: A Prospective Clinical Study.
The aim of this prospective clinical study is to evaluate and compare the changes in occlusal force distribution using a quantitative digital occlusal analysis system following piezocision-assisted rapid maxillary expansion (RME) in adolescent versus young adult orthodontic patients. The study hypothesis is that piezocision-assisted RME will result in significant changes in occlusal force distribution and that these outcomes may differ between age groups over a 3-month follow-up period.
This prospective clinical study evaluates the changes in occlusal force distribution in patients with maxillary transverse deficiency undergoing piezocision-assisted rapid maxillary expansion (RME).
Participants aged 14-22 years with permanent dentition requiring rapid maxillary expansion are allocated into two age-based study groups:
Group I (Adolescents): Patients aged 14-16 years. Group II (Young Adults): Patients aged 18-22 years. All participants undergo piezocision-assisted RME. Under local anesthesia, selective vertical micro-incisions are made interproximally on the buccal alveolar bone distal to the canines, first premolars, and second premolars. Corticotomy cuts to a depth of 3 mm into cortical bone are performed using a piezoelectric surgical device. A bonded tooth-borne Hyrax expander is then cemented and activated two quarters per day (0.5 mm of expansion per day) for 11 days. The expander is maintained as a passive retainer for 3 months to allow stabilization and midpalatal suture remodeling. Primary outcomes evaluate percentage changes in occlusal force distribution at maximum intercuspation across dental arch segments (Anterior vs. Posterior and Right vs. Left), as well as occlusion time and disclusion time during excursive movements, using quantitative digital occlusal force analysis(T-Scan III, Tekscan Inc., Norwood, MA, USA)). Secondary outcomes assess patient-reported pain and discomfort levels at defined time intervals.
Inclusion Criteria:
1 - Patients with transverse maxillary deficiency. 2. Age range 14-22 years 3. Permanent dentition stage. 4. Good general and oral health.
Exclusion Criteria: