The Effects of Various Rapid Palatal Expansion Appliances on Dentoskeletal, Dentoalveolar, Nasal and Airway Resistance

TC Erciyes University58 enrolled

Overview

This study aims to evaluate the effects of dentoalveolar, dentoskeletal, nasal resistance, and airway changes by applying rapid palatal expansion appliances in patients with maxillary constriction and the post-pubertal growth spurt stage.

Fifty eight patients were divided into 4 groups. The first group (n: 15, 15.6 ± 1,1 years of age) was Full Coverage Rapid Palatal Expansion (FCRPE). The second group ( n:14, 15.3 ± 0,9 years of age) was Modified McNamara Rapid Palatal Expansion (MMRPE). The third group (n:14, 15.7 ± 1,1 years of age) was Miniimplant Assisted Rapid Palatal Expansion (MARPE). The fourth group (n:15, 15.4 ± 1,0 years of age) was control group. Polygraphy for respiratory evaluation, rhinomanometry for nasal airway resistance, study model, and posteroanterior radiographs (PA) to measure dentoalveolar and dentoskeletal effects were used. Respiratory polygraphy, rhinomanometry, study model, and posteroanterior radiographs were obtained prior to treatment and after 3 months of expansion. Paired t tests and independent-sample t tests were used to compare the expansion appliances.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Transverse Maxillary Deficiency

Interventions

Tooth Tissue Borne Rapid Palatal ExpansionDEVICE

In all rapid palatal expansion groups, the appliances were cis bonded after being made by the same technician. The expansion screw was turned twice a day until the desired width was achieved.

Tooth Bone Borne Rapid Palatal ExpansionDEVICE

After the Marpe appliance was attached, 4 miniscrews were applied to the midline of the palate with a miniscrew driver. The expansion screw was turned twice a day until the desired width was achieved.

Eligibility

Sex: ALLMin age: 14 YearsMax age: 17 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * With a unilateral or bilateral morphological lateral crossbite * Whose first molars and premolars had completely erupted at pretreatment * With maxillary constriction of more than 4 mm and less than 10 mm * Who were going through the post-pubertal growth spurt stage based on hand-wrist radiographs * Individuals with a body mass index of 18-24 * Individuals with an ANB angle between 0º and 4º Exclusion Criteria: * craniofacial anomalies * compliance problems * systemic or genetic disease * previous orthodontic treatment history

Locations (1)

Erciyes University Faculty of Dentistry ,Department of Orthodontics

Kayseri, Turkey (Türkiye)

Outcomes

Primary Outcomes

Rhinomanometry Measurement Parameters (Pa/cm3/sn )

-Total Nasal Resistance(Pa/cm3/sn ): In our study, total nasal resistance was measured with a rhinomanometry device.

Time frame: up to 1 year

Polygraphy Measurement Parameters (event/hour)

\- Apnea-Hypopnea Index (event/hour) : In our study, Apnea-Hypopnea Index(AHI) was measured with a polygraphy device. - Oxygen Desaturation index (De SPO2) : In our study, De SPO2 was measured with a polygraphy device.

Time frame: up to 1 year

Secondary Outcomes

Postero-anterior Measurement Parameters(mm)

* NCB-NCB': Distance between right and left nasal cavity borders(mm) * JP-JP' : Distance between right and left jugal processes(mm) * AGP-AGP' : Distance between right and left antagonial points(mm)

Time frame: up to 1 year

Model Measurement Parameters(mm)

* C-C : Distance between cusp crests of canines(mm) * C'-C' : Distance between cingulum of canines(mm) * M1-M1 : The distance between buccal tubercles of first molar(mm) * M1'-M1' : The distance between the lingual tubercles of first molar(mm)

Time frame: up to 1 year

Data from ClinicalTrials.gov

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