Dentoalveolar changes observed after the use of customized bonded Shark-Tooth-Like Spurs (JAWs) in adult patients with anterior open bite

Abstract

Introduction: Tongue spurs have been successfully used for the early treatment of anterior open bite (AOB). However, according to our knowledge, their effectiveness in the treatment of adults has not been evaluated. Objectives: The purpose of the study was to assess the dentoalveolar changes observed after the use of customized bonded shark-tooth-like spurs (JAWs) in adults with AOB. Methods: Twenty-three adults (22.1±4.4 years) with AOB were selected for the treatment. JAWs made from compomer cement were bonded on the lingual surfaces of the maxillary and mandibular anterior teeth to correct tongue-thrusting. Lateral cephalograms and 3D digital models were obtained to evaluate dentoalveolar features observed before and at three time points after JAWs use. Paired t-test and repeated measure ANOVA tests were used to compare dentoalveolar changes, and Pearson’s correlation was used to analyze the association of dentoalveolar changes and overbite changes. The significance level was set at p<0.05. Results: Significant 3D dentoalveolar changes were observed after the three months of treatment with JAWs. Improvement of overbite (1.0±0.6 mm) and overjet (0.2±0.3 mm), combined with a retroclination of maxillary (3.0±3.0°) and mandibular (2.2±2.7°) incisors, were observed (p<0.05). Moreover, a significant decrease in anterior dental arch width in both maxillary and mandibular arches (0.4±0.4 mm; 0.3±0.3 mm, respectively), and an increase of posterior maxillary (0.1±0.2 mm) dental arch width were observed (p<0.05). These significant changes occurred in the first month after the JAWs use. A significant correlation was found between the initial arch length discrepancy and the amount of overbite correction (r=0.456, p<0.05). Conclusions: Dentoalveolar changes occurred after the first-month therapy with JAWs. The retroclination of the anterior teeth combined with the expansion of posterior teeth suggests a posterosuperior change in the tongue position. These changes were beneficial for the treatment of AOB in adult patients.

Dentoalveolar effects of skeletally anchored extrusion arch in anterior open bite patients: A prospective clinical trial

“…These results were consistent with those of Atout et al, 21 Kim et al, 8 de Brito Vasconcelos et al, 15 and Kraisiridej et al 22 Regarding the effect of the extrusion arch on dental arches parameters, the results of the current study showed that the upper arch length and the upper arch perimeter reduced significantly by 2.09 ± 0.76 mm and 1.9 ±0.87 mm, respectively, with no significant change in the lower arch length and perimeter. These results were similar, but they were greater in magnitude, to those of Aliaga-Del Castillo et al 23 the incisors palatally; while the tongue spurs or crib depends on change in the muscle equilibrium, tending to pure extrusion of the upper incisors.…”

Re educadores linguales mediante técnica de resina inyectada (RELI)

“…Suzuki en el 2022 en su estudio nos dice que se produjeron cambios dentoalveolares después del primer mes de tratamiento con JAW (espolones linguales) se produjo una retro inclinación de los dientes anteriores que combinada con la expansión de los dientes posteriores sugiere un cambio posterosuperior en la posición de la lengua. Estos cambios fueron beneficiosos para el tratamiento de la AOB en pacientes adultos (18).…”

Assessment of the Treatment Quality of Patients With Functional Disorders of the Dento-Magular Apparatus Combined With the Dentoalveolar Form of Deep Bite

“…Часто даний вид патології поєднується з аномаліями в сагітальній площині [3,4]. Визначено, що ефективність діагностики і лікування пацієнтів з функціональними розладами зубо-щелепного апарату, поєднаних з денто-альвеолярною формою глибокого прикусу, залишається вагомою проблемою сучасної стоматології.…”