Oral Health and Dental Management

The efficacy of miniscrew-assisted rapid maxillary expansion (MARPE) in non-growing patients: A prospective clinical cohort study

Joint Meet European Conference on Dental Health

July 29, 2021 | Webinar

Aldin Kapetanovic

Radboud University Medical Center, Netherlands

Scientific Tracks Abstracts: OHDM

Abstract:

Background: Miniscrew-Assisted Rapid Palatal Expansion (MARPE) is a non-surgical treatment for transverse maxillary deficiency. However, there is a lack of higher-quality prospective clinical publications on its efficacy. Objectives: To investigate the efficacy of MARPE in non-growing patients/late adolescents and adults by assessing success rate, skeletal and dentoalveolar effects, as well as treatment duration and dental and periodontal side-effects. Materials and Methods: The Dutch MARPE Appliance was developed as an individualized, 3D-printed MARPE supported by 4 palatal mini-screws. Patients from the age of 16 onwards with transverse maxillary deficiency were enrolled prospectively. Pre-expansion and immediate post-expansion CBCTs and intra-oral dental scans were acquired and fusion models were used for measurements by two observers individually. Results: Successful expansion was achieved in 32 (out of 34) patients (94.1%), who were included for analysis (6 male, 26 female; mean age: 26.1±8.1 years). Mean total expansion at the maxillary first molars (M1) was 6.56±1.70mm and 4.19±1.29mm at first premolars (P1). The expansion was 57.2% skeletal (3.75±1.02mm), 10.4% alveolar (0.68±1.65mm) and 32.4% dental (2.12±1.58mm) at M1 and 92.2% skeletal (3.86±0.95mm) and 7.8% dental (0.33±1.16mm) at P1, which was both statistically and clinically significant (p<0.001). Nasal cavity expansion was 55.2% of the skeletal expansion at M1. Mean expansion duration was 30.9±8.2 days. Buccal dental tipping, clinical crown height increase and buccal bone thinning were observed, but may be considered clinically insignificant. Conclusions & Implications: MARPE is an effective and safe treatment for transverse maxillary deficiency without surgery in non-growing patients.

Biography :

Aldin Kapetanovic is a practicing orthodontist, graduated from the Radboud University Nijmegen, the Netherlands, where he is currently conducting doctoral research on the topic of Miniscrew-Assisted Rapid Maxillary Expansion (MARPE). He has published papers with a focus on innovation in orthodontics in several reputed journals.