Transpalatal Distraction in a Patient with a Narrow Maxilla

Sarı, Emel; Uçar, Cihan; Ceylanoğlu, Cenk

doi:10.2319/110206-450.1

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…Maxillary transverse deficiency is a problem in orthodontic patients, creating clinical, esthetic, and functional problems that may affect both of the arches. These problems may include crowding, impaction and protrusion of the teeth along with the presence of wide buccal corridors upon smiling (1)(2)(3) .Transverse maxillary deficiency has been reported to affect 8% to 23% of adolescent patients and less than 10% of adult patients (3)(4)(5) . The most common finding in maxillary transverse deficiency is unilateral or bilateral cross-bite (1)(2)(3) .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Dento-skeletal effects of Mini-implant Assisted Rapid Palatal Expansion in a sample of Adult Orthodontic Patients: A prospective clinical study

2020

Al-Azhar Journal of Dental Science

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Objective: to evaluate the dentoskeletal effects of maxillary skeletal expander (MSE) in adult orthodontic patients, using Cone Beam Computed Tomography (CBCT). Patients and Methods: The current study was conducted on 14 adult orthodontic patients (4 males and 10 females), with their age ranged from 18 to 21 years, treated with a special type mini-implant assisted rapid palatal expander called, MSE (Maxillary Skeletal Expander) to correct transverse maxillary deficiency. The CBCT images were performed before the start of the orthodontic expansion (T1) and 3 months after the last activation (T2). Paired t-test, and descriptive statistics were used to evaluate the amount and the pattern of the mid-palatal suture opening, the total amount of maxillary expansion and the change in the inter-molar distance and molar inclination. Results: Four patients were dropped-out for different reasons, so, the statistical analysis was performed only on 10 patients (3 males, 7 females). The midpalatal suture split by 2.96mm and 2.64mm at the anterior nasal spine (ANS) and the posterior nasal spine (PNS) respectively, with a ratio of 89% between the PNS and the ANS. The maxillary width showed increase by 2.99 mm between the right and left zygomaticomaxillary sutures. The inter-molar distance and the molar inclination showed increase by 5.3 mm and 5.4 o respectively. Conclusions: MSE is an efficient appliance for producing rapid palatal expansion and mid-palatal suture opening in adult orthodontic patients and can be used as an alternative to the surgically assisted rapid palatal expansion. MSE expansion affects the involved molars, causing increased inter-molar distance with limited buccal tipping.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Dento-skeletal effects of Mini-implant Assisted Rapid Palatal Expansion in a sample of Adult Orthodontic Patients: A prospective clinical study

2020

Al-Azhar Journal of Dental Science

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Bone-Anchored Rapid Palatal Expansion

Kim

2014

Temporary Skeletal Anchorage Devices

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It has been a common practice to use rapid palatal expansion (RPE) in correcting transverse maxillary defi ciency and arch-length discrepancies. It is, however, known that RPE can cause signifi cant periodontal problems such as excessive buccal crown tipping, root resorption, dehiscence, fenestration, and instability of results [ 1 -5 ]. A few studies have reported that there is more dentoalveolar tipping than true skeletal expansion with RPE [ 6 , 7 ]. Older patients have more dentoalveolar tipping after RPE becomes greater with its resultant gingival recessions.There have been many attempts to minimize these side effects while maximizing the skeletal expansion [ 8 -13 ]. One particular study, which compares a surgically assisted, bone-anchored RPE with a traditional tooth-anchored RPE, concludes that the bone-anchored expander produces more skeletal changes than dental changes [ 14 ]. However, another study has reported that both expanders show similar results [ 10 ]. It is still unclear whether bone-anchored RPE has less dentoalveolar tipping and more skeletal expansion. Therefore, there appears to be a need for a randomized clinical trial. It might seem logical that there would be advantages over tooth-borne RPE in regard to periodontal consequences, as the expanders are not directly attached to the posterior teeth. This chapter shows a few variations of bone-anchored RPE in different types of cases. No Tooth Attachment DesignFour metal rings with a diameter of 1.6 mm were laser-welded with a jackscrew on the predetermined paramedial area. Four miniscrew implants were placed through the metal rings

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