Dentoalveolar effects produced by different appliances on early treatment of anterior open bite: A randomized clinical trial

Rossato, Paulo Henrique; Fernandes, Thaís Maria Freire; Urnau, Flávia Diane Assis; Castro, Ana Cláudia de; Conti, Ferreira; Almeida, Renato Rodrigues de; Oltramari-Navarro, Paula Vanessa Pedron

doi:10.2319/101317-691.1

Cited by 41 publications

(66 citation statements)

References 23 publications

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“…Also, in the current study, a significant increase of 5.57°in the interincisal angle was observed, due to the retroclination of the anterior teeth. Similarly, previous studies observed an increase in the interincisal angle ranging from 9.66°( palatal crib and chincup) [16], 3.34°(BS), 9.65°(FPC), 7.01°(RPC), and 4.25°(CC) [8].…”

Section: Discussionsupporting

confidence: 81%

“…Extrusion arch mechanics produced a mean maxillary incisor extrusion of 1.94 mm during a mean treatment period of 7.79 months. Previous studies observed similar results with other types of appliances over a 12-month period [8,9,14,16,17]. The removable palatal crib (RPC) resulted in incisor extrusion ranging from 1.64 mm [8], 2.47 mm [9], and 2.98 mm [17], while the use of bonded spurs (BS) promoted changes of 1.50 mm [8], 2.35 mm [9], 3.16 mm [16], and 2.33 mm [17] when associated with a chincup (CC) [16].…”

Section: Discussionsupporting

confidence: 80%

“…Different treatment modalities have been recommended with appliances such as fixed and removable palatal cribs, bonded spurs, chincup [5,8,9], and intermaxillary elastics being commonly used [10]. Despite having excellent results, the majority of these appliances require patient cooperation and can cause some discomfort.…”

Section: Introductionmentioning

confidence: 99%

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A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

et al. 2020

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Aim To evaluate the maxillary dentition effects of the extrusion arch for anterior open bite (AOB) correction in mixed dentition patients. Materials and methods Fourteen subjects with an initial mean age of 9.17 ± 1.03 years presenting with dentoalveolar AOB (mean − 1.28 ± 1.46 mm) and normal facial pattern (FMA = 25.76°) were treated with an extrusion arch. The mean treatment period was 7.79 ± 2.58 months. Lateral cephalograms and dental models were taken before (T0) and after the correction of AOB (T1). Data were analyzed using paired t test to evaluate differences between T0 and T1. For all tests, a significance level of P < .05 was used. Results All patients achieved positive overbite at T1, with a mean increase of 3.07 mm. The maxillary incisors extruded 1.94 mm. Retroclination of the maxillary incisors (− 6.15°) and an increase in the interincisal angle (5.57°) were observed. There was a significant decrease in the distance between the incisal edge of the maxillary incisors and the molars (− 2.21 mm). There was significant mesial tipping of the maxillary molar (− 11.49°). Significant reductions of overjet (− 1.65 mm), arch perimeter (− 3.02 mm), and arch length (− 2.23 mm) were noted. The transverse maxillary intermolar distance did not change significantly. Conclusions The use of a maxillary extrusion arch was effective in the treatment of AOB. Overbite increased due to incisor extrusion, as well as retroinclination and overjet reduction. However, side effects, such as mesial molar tipping and decreases in arch perimeter and length might occur.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionsupporting

confidence: 80%

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A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

et al. 2020

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“…In children and adolescents, anterior open bites with tongue thrust can be treated by fixed or removable appliances, with or without lingual spurs and cribs. [45][46][47] However, anterior open bites in adult patients are considered skeletal, since the positioning of the anterior teeth implies in permanently deformed dentoalveolar bases and, most of the time, malocclusion is treated with fixed orthodontic appliances and intermaxillary elastics. 48 Indeed, an orthodontic-surgical approach, with mandibular advancement and counterclockwise rotation of the occlusal plane, can be an alternative therapeutic plan for these cases 49 But orthognathic surgeries involve extra costs and risks, and provide no full guarantee of long-term stability.…”

Section: Discussionmentioning

confidence: 99%

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Santo¹

2020

Dental Press J. Orthod.

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Adult patients with anterior open bite and hyperdivergent retrognathic phenotype demand complex treatments, as premolar extractions, molar intrusion or orthognathic surgery. In the present clinical case, a young adult patient without significant growth, with Class I and anterior open bite, was treated with four premolar extractions. The therapeutic result shows good intercuspation, good facial esthetic, good function balance, and stability in a two-year post-fixed treatment follow-up.

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“…Regarding the use of the fixed palatine grille for the treatment of anterior open bite, the present report is in agreement with previous studies, which opted for the same treatment, being successful at the end of the therapy. 29,30…”

Section: Discussionmentioning

confidence: 99%

Genetic and epigenetic aspects related to malocclusion–report of cases of monozygotic twins

Carvalho

Damasceno

Couto

et al. 2019

BJHR

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Introduction: The multifactorial etiology of malocclusion involves several factors such as genetic, epigenetic and environmental factors. Among various dental anomalies, the development of supernumerary teeth is also directly related to genetic factors and mesiodens is the most frequent type of anomaly. Case Report: Two monozygotic twin sisters, both of which presented mesiodens, but only one with associated anterior open bite. Supernumerary removal was performed in the two sisters, and the anterior open bite was treated with the use of a fixed palatine grid. Results: The case was finished with proper occlusion and intercuspidation, contemplating facial and dental esthetics. Conclusion: Observing the possible differences that occur in pairs of monozygotic twins, it can be concluded that the development of malocclusions is associated with an interaction between genetic, epigenetic and environmental factors. Thus, the diagnosis and treatment of malocclusion should be individualized for each patient.

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Dentoalveolar effects produced by different appliances on early treatment of anterior open bite: A randomized clinical trial

Abstract: All of the tested devices promoted dental changes, especially in the anterior region, and contributed to AOB reduction during the study period. However, fixed palatal crib demonstrated greater impact on the positioning of the incisors.

Cited by 41 publications

References 23 publications

A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

A prospective clinical trial of the effects produced by the extrusion arch in the treatment of anterior open bite

Treatment of adult patient with hyperdivergent retrognathic phenotype and anterior open bite: report of a case with non-surgical orthodontic approach

Genetic and epigenetic aspects related to malocclusion–report of cases of monozygotic twins

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