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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05248087
Other study ID # UDDS-Ortho-02-2022
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 20, 2020
Est. completion date July 25, 2021

Study information

Verified date February 2022
Source Damascus University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Maxillary expansion is associated with varying degrees of pain and functional impairments. The current study aims to compare rapid maxillary expansion using a McNamara-type (bonded) appliance and slow maxillary expansion using a removable palatal expansion appliance concerning patient-centered outcomes. Those outcomes will include pain and discomfort, mastication difficulties, swallowing difficulties, and pressure on the soft tissues.


Description:

Skeletal maxillary constriction is one of the common orthodontic problems of all ages, which could be unilateral or bilateral. If it is neglected and not treated, it may result in later orthodontic problems such as skeletal deviation of the lower jaw. The current study aims to use two types of expanders to treat skeletal maxillary constriction in adolescents aged between 12 and 16 years. The study sample will include 52 patients who will be equally divided into two groups: the slow and the rapid maxillary expansion groups. Patients will be asked to answer a questionnaire within five assessment times during the expansion procedure. The questionnaire will contain four questions: 1) What is the degree of discomfort/pain? 2) What is the degree of mastication difficulties? 3) What is the degree of swallowing difficulties? 4) What is the degree of any sense of pressure in soft tissue?


Recruitment information / eligibility

Status Completed
Enrollment 52
Est. completion date July 25, 2021
Est. primary completion date March 20, 2021
Accepts healthy volunteers No
Gender All
Age group 12 Years to 16 Years
Eligibility Inclusion Criteria: 1. Adolescents between 12 and 16 years. 2. Early permanent dentition. 3. Skeletal bilateral maxillary constriction. 4. There is no loss or absence of any permanent teeth except for the third molar. 5. Dental and skeletal class I/II malocclusion. 6. Normal/mild vertical growth pattern. Exclusion Criteria: 1. Previous orthodontic treatment. 2. A severe horizontal growth pattern. 3. Any periodontal diseases. 4. Any general diseases or syndromes.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
The bonded McNamara-type appliance
The patient will be asked to expand twice a day until obtaining an overcorrection of 2-3 mm. Then the expander will be kept in place for three months as a retention period.
The removable palatal expansion appliance
The slow maxillary expansion will be applied using a removable palatal expansion appliance with a midline screw. The patient will be asked to expand twice a week until obtaining an overcorrection of 2-3 mm.

Locations

Country Name City State
Syrian Arab Republic University of Damascus Damascus

Sponsors (1)

Lead Sponsor Collaborator
Damascus University

Country where clinical trial is conducted

Syrian Arab Republic, 

References & Publications (5)

De Felippe NL, Da Silveira AC, Viana G, Smith B. Influence of palatal expanders on oral comfort, speech, and mastication. Am J Orthod Dentofacial Orthop. 2010 Jan;137(1):48-53. doi: 10.1016/j.ajodo.2008.01.023. — View Citation

Feldmann I, Bazargani F. Pain and discomfort during the first week of rapid maxillary expansion (RME) using two different RME appliances: A randomized controlled trial. Angle Orthod. 2017 May;87(3):391-396. doi: 10.2319/091216-686.1. Epub 2016 Dec 28. — View Citation

Halicioglu K, Kiki A, Yavuz I. Subjective symptoms of RME patients treated with three different screw activation protocols: a randomised clinical trial. Aust Orthod J. 2012 Nov;28(2):225-31. — View Citation

Saleh M, Hajeer MY, Al-Jundi A. Assessment of pain and discomfort during early orthodontic treatment of skeletal Class III malocclusion using the Removable Mandibular Retractor Appliance. Eur J Paediatr Dent. 2013 Jun;14(2):119-24. — View Citation

Ugolini A, Cossellu G, Farronato M, Silvestrini-Biavati A, Lanteri V. A multicenter, prospective, randomized trial of pain and discomfort during maxillary expansion: Leaf expander versus hyrax expander. Int J Paediatr Dent. 2020 Jul;30(4):421-428. doi: 10.1111/ipd.12612. Epub 2020 Jan 20. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change in the levels of discomfort or pain The degree of pain and discomfort that patients feel will be determined using their answers to the following question (question 01):
'What is the degree of discomfort/pain?' The Visual Analogue Scale (VAS) will be adopted to measure the degree of discomfort/pain.
T1: after 24 hours; T2: on the 7th day; T3: on the 15th day; T4: after 1 month; T5: after 4 months
Primary Change in the levels of mastication difficulties The degree of mastication difficulties that patients feel will be determined using their answers to the following question (question 02):
'What is the degree of mastication difficulties?' The Visual Analogue Scale (VAS) will be adopted to measure the degree of mastication difficulties.
T1: after 24 hours; T2: on the 7th day; T3: on the 15th day; T4: after 1 month; T5: after 4 months
Primary Change in the levels of swallowing difficulties The degree of swallowing difficulties that patients feel will be determined using their answers to the following question (question 03):
' What is the degree of swallowing difficulties?' The Visual Analogue Scale (VAS) will be adopted to measure the degree of swallowing difficulties.
T1: after 24 hours; T2: on the 7th day; T3: on the 15th day; T4: after 1 month; T5: after 4 months
Primary Change in the levels of sensation of pressure on soft tissue The degree of any sense of pressure in soft tissue that patients feel will be determined using their answers to the following question (question 04):
' What is the degree of any sense of pressure in soft tissue? ' The Visual Analogue Scale (VAS) will be adopted to measure the degree of any sense of pressure in soft tissue.
T1: after 24 hours; T2: on the 7th day; T3: on the 15th day; T4: after 1 month; T5: after 4 months
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