Prediction of changes due to mandibular autorotation following miniplate-anchored intrusion of maxillary posterior teeth in open bite cases

Kassem, Hassan; Marzouk, Eiman

doi:10.1186/s40510-018-0213-5

Cited by 19 publications

(10 citation statements)

References 37 publications

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“…The increase in overbite of 1.2 mm per 1 mm of maxillary molar intrusion in the present study was smaller than that in previous studies, which reported a 2–3 mm increase in overbite. 26 - 29 This discrepancy may be attributed to the data interpretation methods, as simple ratios and linear regressions can be differently interpreted. The coefficient for maxillary molar intrusion in the present study was close to that in previous studies that showed an overbite increase of 1.5 mm 26 and 1.2 mm 28 per 1 mm of additional maxillary molar intrusion.…”

Section: Discussionmentioning

confidence: 99%

Treatment of anterior open bites using non-extraction clear aligner therapy in adult patients

et al. 2022

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Objective The purpose of this study was to examine the effectiveness and mechanism of clear aligner therapy for the correction of anterior open bite in adult nonextraction cases. Methods Sixty-nine adult patients with anterior open bite were enrolled and classified into Angle’s Class I, II, and III groups. Fifty patients presented with skeletal open bite (mandibular plane angle [MPA] ≥ 38°), whereas 19 presented with dental open bite. Fifteen cephalometric landmarks were identified before (T1) and after (T2) treatment. The magnitudes of planned and actual movements of the incisors and molars were calculated. Results Positive overbite was achieved in 94% patients, with a mean final overbite of 1.1 ± 0.8 mm. The mean change in overbite was 3.3 ± 1.4 mm. With clear aligners alone, 0.36 ± 0.58 mm of maxillary molar intrusion was achieved. Compared with the Class I group, the Class II group showed greater maxillary molar intrusion and MPA reduction. The Class III group showed greater mandibular incisor extrusion with no significant vertical skeletal changes. Conclusions Clear aligners can be effective in controlling the vertical dimension and correcting mild to moderate anterior open bite in adult nonextraction cases. The treatment mechanism for Class III patients significantly differed from that for Class I and Class II patients. Maxillary incisor extrusion in patients with dental open bite and MPA reduction with mandibular incisor extrusion in patients with skeletal open bite are the most significant contributing factors for open bite closure.

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Section: Discussionmentioning

confidence: 99%

Treatment of anterior open bites using non-extraction clear aligner therapy in adult patients

et al. 2022

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“…In the recent years, palatal mini-implants have gained popularity and have been widely used for molar intrusion, molar protraction, segment protraction, and anterior tooth retraction [ 1 – 7 ]. The palatal mini-implants are usually preferred, because the site of mini-implant placement is easily accessible, has less soft tissue irritation, does not interfere with the desired orthodontic tooth movement, and has good quality and quantity of bone [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Gender and growth variation in palatal bone thickness and density for mini-implant placement

et al. 2018

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BackgroundThe objective was to compare the palatal bone thickness (PBT) and palatal bone density (PBD) in the anterior, middle, and posterior part of the palate in males and females.MethodsThis retrospective study reviewed cone beam computed tomography scans of 359 patients. The scans were divided into 99 growing males, 105 growing females, 74 non-growing males, and 81 non-growing females. The measurements of PBT and PBD were made in between the canine and first premolar, the first premolar and second premolar, the second premolar and first molar, and the first molar and second molar. The measurements were made in the center of the palate and 4 mm away from the center. ANOVA was used to analyze the PBT and PBD in different areas between four different groups.ResultsThe PBT was lower (P < 0.0001) as we moved from the anterior to the posterior palate. The PBT was more (P < 0.001) in the center of the palate than 4 mm away from the center, except in between the canine and first premolar. The growing male and non-growing male had higher (P < 0.0001) PBT than the growing female and non-growing female in between the canine and first premolar and the first premolar and second premolar both in the center and 4 mm away from it. The PBD was higher (P < 0.05) in between the canine and first premolar area at the center of the palate and between the second premolar and first molar 4 mm away from the center in all the experimental groups.ConclusionsThere exists a definite gender and growth variation in the PBT and PBD in different parts of the palate. Palatal bone thickness between the males and females revealed that the males had significantly higher PBT than the females.

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“…Treatment protocols involve the use of fixed appliances, orthognathic surgery, temporary anchorage devices with mini-screws or mini-plates, aligners, headgears, bite blocks [2][3][4][5][6][7][8][9]. Vela-Hernández et al [7] reported that build-ups on posterior teeth are an efficient tool for AOB treatment in adults, as they act in a similar way to bite blocks by promoting a mandibular rotation.…”

Section: Introductionmentioning

confidence: 99%

Is jaw functional orthopedics an efficient tool to treat anterior open bite? A retrospective study

Soares¹,

Jr.²

2022

Jaw funct. orthop., craniofac. growth

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Anterior Open Bite (AOB) is a malocclusion for which the choice of a treatment protocol it is challenging. There are some protocols that have been shown to be effective for open bite treatment. The aim of this investigation was to study the behavior of overbite during AOB treatment with Jaw Functional Orthopedics (JFO). The behavior of overbite was studied retrospectively in 17 patients treated in the Specialization Course in (JFO – ABO Muriaé (Muriaé, MG Brazil). Monthly overbite measurements in millimeters were taken with a pachymeter and the data were stored in an individual paper worksheet. Data obtained before functional appliance installation (T0) and after 12-months of treatment (T1) were compared. Wilcoxon non-parametric test for 2 paired samples was use for statical treatment of the data. P= 0.003 for overbite comparison T1-T0. It could be concluded that Functional orthopedic appliance has shown to be an effective tool for treating anterior open bite in the sample studied. Further studies, mainly Randomized Clinical Trials, with larger samples are necessary to confirm this result and to study stability and skeletal behavior in anterior open bite treated with Jaw Functional orthopedics.

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Prediction of changes due to mandibular autorotation following miniplate-anchored intrusion of maxillary posterior teeth in open bite cases

Cited by 19 publications

References 37 publications

Treatment of anterior open bites using non-extraction clear aligner therapy in adult patients

Treatment of anterior open bites using non-extraction clear aligner therapy in adult patients

Gender and growth variation in palatal bone thickness and density for mini-implant placement

Is jaw functional orthopedics an efficient tool to treat anterior open bite? A retrospective study

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