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Orthodontic Retention on the Maxillary Stability After SARME Using Laser Scanner

M

Max Domingues Pereira

Status

Completed

Conditions

Maxillary Hypoplasia

Treatments

Procedure: Surgically Assisted Rapid Maxillary Expansion (SARME)
Other: Laser Scanner

Study type

Interventional

Funder types

Other

Identifiers

NCT01770782
0949/09

Details and patient eligibility

About

The objective of this study was to evaluate the effect of the orthodontic retainer on transverse maxillary dental and skeletal stability after SARME.

Full description

Methods: Ninety digitized dental casts of 30 adult patients (18 males and 12 females) submitted to SARME using the Hyrax expansion appliance were evaluated. Patients were distributed into two groups: Group Without Retention (GSC) n = 15; and Group With Retention (GCC) n = 15. In the GCC group, a Transpalatal Arch (TPA) was installed for retention soon after removal of the expander. The dental casts were scanned using a Vivid 9i 3D laser scanner (Konica Minolta, Wayne, NJ). The plaster models were performed preoperatively (T1), 4 months after the expander was removed (T2), and 10 months after the end of the expansion (T3). The distances measured were Inter-Cusps of Premolars and Molars (Inter-Cusp PM) (Inter-Cusp M), Inter-Cervicals of Premolars and Molars (Inter-Cervical PM) (Inter-Cervical M), Inter-WALA edges of Premolars and Molars (PM Inter-BW) (BW Inter-M), palatal height at the molar, and palatal area and volume at T1, T2, and T3.

Enrollment

30 patients

Sex

All

Ages

18 to 40 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Adult patients with bilateral transverse maxillary deficiencies greater than 5 mm

Exclusion criteria

  • Patients with previous histories of maxillary surgery,
  • congenital craniofacial malformations and
  • unilateral transverse maxillary deficiencies

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

30 participants in 2 patient groups

Laser Scanner
Other group
Description:
Laser Scanner (Vivid 9i® - Konica Minolta)was used to digitize the study casts. After scanning the dental casts a 3D virtual dental casts was used to realize all measurements (pre-treatment, 4 months and 10 months).
Treatment:
Other: Laser Scanner
SARME
Other group
Description:
Surgically Assisted rapid Maxillary Expansion -SARME was used for the treatment of transverse maxillary deficiency.This procedure is a combination of a surgical procedure and orthopedic expansion of the maxilla.
Treatment:
Procedure: Surgically Assisted Rapid Maxillary Expansion (SARME)

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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