Palatal bone thickness compared with cone-beam computed tomography in adolescents and adults for mini-implant placement

Ryu, Jun-Ha; Park, Jae Hyun; Thu, Trang Vu Thi; Bayome, Mohamed; Kim, YoonJi; Kook, Yoon‐Ah

doi:10.1016/j.ajodo.2012.03.027

Cited by 84 publications

(73 citation statements)

References 23 publications

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“…Therefore, palatal bone thickness and density as well as palatal soft tissue thickness have recently been evaluated in adolescents. [19][20][21] Currently, the modified palatal anchorage plate (MPAP) offers a simple and effective nonextraction approach for distalization of the maxillary dentition in adults. 22 However, the effect of palatal plates on the growth of the maxilla has not been evaluated.…”

Section: Introductionmentioning

confidence: 99%

Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents

Sa'aed

Park

Bayome

et al. 2014

The Angle Orthodontist

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Objective: To evaluate and compare skeletal effects and the amount of molar distalization in maxilla using modified palatal anchorage plate (MPAP) vs headgear appliances in adolescent patients. Materials and Methods: Pre-and posttreatment lateral cephalograms of 45 Class II malocclusion patients were analyzed; 24 were treated with MPAP appliances (age, 12.4 years) and 21 with headgear (age, 12.1 years). Fixed orthodontic treatment started with the distalization process in both groups. Thirty-two variables were measured and compared between both groups using multivariate analysis of covariates. Results: There was no significant main effect of the appliance type on the treatment results (P 5 .063). Also, there was no significant main effect of the appliance type on both pre-and posttreatment comparisons (P 5 .0198 and .135, respectively). The MPAP and headgear groups showed significant distalization of maxillary first molars (3.06 6 0.54 mm and 1.8 6 0.58 mm, respectively; P , .001). Sagittal skeletal maxillomandibular differences were improved after treatment (P , .001), with no significant differences between the two groups. No significant difference in treatment duration was found between the groups. Conclusions: The MPAP showed a significant skeletal effect on the maxilla. Both MPAP and headgear resulted in distalization of maxillary first molars. Therefore, it is recommended that clinicians consider the application of MPAP, especially in noncompliant Class II patients. (Angle Orthod. 2015;85:657-664.)

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Section: Introductionmentioning

confidence: 99%

Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents

Sa'aed

Park

Bayome

et al. 2014

The Angle Orthodontist

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“…Moreover, the palatal bone's thickness and density and the palatal soft tissues have been evaluated for the placement of miniscrews. [24][25][26][27] In our case, it would have been possible to decrease treatment time by placing the MPAP at the time of the premolar extractions and using it as an anchorage for both en-masse retraction and molar distalization, although this might have required some modifications on the palatal arch during treatment. A future study is recommended to evaluate the treatment effect of this combination using finite element analysis.…”

Section: Discussionmentioning

confidence: 91%

Correction of severe bimaxillary protrusion with first premolar extractions and total arch distalization with palatal anchorage plates

Kook

Park

Bayome

et al. 2015

American Journal of Orthodontics and Dentofacial Orthopedics

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“…The average thickness of the palatal bone 2-4 mm from the midline was between 4 and 7 mm [ 15 ]. A careful evaluation of the bone thickness is essential for locating and directing the miniscrew implant placement to prevent unwanted tissue injury.…”

Section: Acrylic-type Designmentioning

confidence: 99%

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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Palatal bone thickness compared with cone-beam computed tomography in adolescents and adults for mini-implant placement

Cited by 84 publications

References 23 publications

Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents

Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents

Correction of severe bimaxillary protrusion with first premolar extractions and total arch distalization with palatal anchorage plates

Bone-Anchored Rapid Palatal Expansion

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