Poster presented at the First international Congress of CiiEM “From Basic Sciences to Clinical Research”, 27-28 November 2015, Egas Moniz, Caparica, Portugal

Godinho, Catarina

Melo, Filipe

Toureiro, Ana Marta

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RESULTSOBJECTIVEBACKGROUNDAna Marta Toureiro¹, Filipe Melo², Catarina Godinho³1.Estudante do 5º ano do Mestrado Integrado em Medicina Dentária do Instituto Superior de Ciências da Saúde Egas Moniz, Monte de Caparica, Portugal; 2.Faculdade de Motricidade Humana da Universidade de Lisboa, Portugal;3.Center of Interdisciplinary Research Egas Moniz (CiiEM), Instituto Superior de Ciências da Saúde Egas Moniz, Monte de Caparica, Portugal.CONCLUSIONIs there a Relation between Crossbite and/or an Open bite, Static Postural Behaviour, and the incidence of Non-Traumatic Injuries in young athletes?METHODSMany studies suggest there is a close relationship betweenstomatognatic system and posture, and that crossbites (CB) andopen bites (OB) are malocclusions which may influence otherhuman body structures capable of changing the athlete’s staticposture and balance capacity. This condition can promote theoccurrence of Non-traumatic sports injuries (those which occurwithout the intervention of any external factors).With the purpose of observing the presence of CB and/or OBan intra-oral evaluation was preceded in young athletes, offootball and basketball, between the ages of 11-19 years old.After we measured the static postural behaviour with aposturographic platform – RsScan footscan. Theposturographic variables analyzed were Area (mm²) of Centreof Pressure (CP), CP’s total Distance (mm) and the distributionof anterior-posterior and medial-lateral plantar pressure, for aperiod of 20 sec. It was also applied a questionnaire to assessthe occurrence of Non-traumatic Injuries for each athlete.The CP’s Total Distance was significantly inferior in athletes with BPCB thanwith Right and Left UPCB. It was observed BPCB appears to influence agreater predisposition for the incidence of Non-traumatic Injuries, eventhough these data should be confirmed in future studies.This study’s sample involved 166 athletes (124 males), of which 29 (17,5%)presented CB and/or OB (11 Right Unilateral Posterior CB (Right UPCB); 4Left UPCB; 5 Bilateral Posterior CB (BPCB); 1 Anterior CB (ACB); 8 AnteriorOB (AOB)).We observed that all participants with BPCB reported having experienced atleast one Non-traumatic Injury and that CP’s total Distance of BPCB’sathletes was significantly lower than athletes with Right (p=0,043) and Left(p=0,007) UPCB (graphic 1). The CP’s Area of athletes with BPCB it wasalso lower than all other CB/OB groups (graphic 2). These findings can bejustified because since the presence of an UPCB promotes a unilateralchewing to the side of CB, this can cause an asymmetric activation of themasticatory muscles that causes an imbalance in growth and an unevenskeletal development between the left and right sides of the jaw. This canlead to postural changes through the muscle chains that may causeasymmetry in the whole body.We didn’t find any association between the presence of CB and/or OB andthe analyzed posturographic variables when compared with individualswithout CB and/or OB. This can be justified because postural controlbehaviour is also dependent on visual and vestibular systems, which cancompensate for balance problems related to somatosensorial system, evenmore in individuals that practice regular physical activity.Regarding the incidence of Non-traumatic Injuries, in this sample, we didn’tidentify any significant difference amongst these two groups but weobserved that BPCB appears to influence a greater predisposition for thisevents, because all this athletes referred at list one non traumatic lesion andhis group had a lower CP’s Area and Distance – lower oscillation can beassociated to a higher rigidity that can lead to a higher risk of injuries.Graphic 1. Relationship between the mean value of Center of Pressure’s total Distance and Crossbites/Open bites.Graphic 2. Relationship between the mean values of Center of Pressure’s total Area and Crossbites/Open bites. Firstly, this work aims to study if the presence of CB and/orOB change the static postural behaviour when compared toindividuals without the presence of these malocclusions; the second goal of this study relies on analyzing if a changeof an athlete’s static posture is related to a higher incidenceof Non-traumatic Injuries (assuming that the presence of CBand/or OB affects the posture/balance);Posturographic platform – RsScan footscanAnterior Open BiteUnilateral Posterior CrossbiteReferences: Cuccia, A., & Caradonna, C. (2009). The relationship between the stomatognathic system and body posture. Clinics (Sao Paulo, Brazil), 64(1), 61–66; Zemková, E.(2011). Assessment of balance in sport: Science and reality. Serbian Journal of Sports Scienc, 5(4), 127–139; Ciavarella, D., Monsurrò, A., Padricelli, G., Battista, G., Laino, L., & Perillo, L.(2012). Unilateral posterior crossbite in adolescents: surface electromyographic evaluation. EuropEan Journal of Paediatric Dentistry, 13(1), 25–28; Barata Caballero, D., Mencía Marrón,A., & Durán Porto, A. (2007). Relación entre oclusión y postura (II). Fisiopatología de la mordida cruzada. Gaceta Dental, 187, 124–139; Bascarán, J. B. (2013). Odontoposturología: unnuevo campo de actuación para los dentistas. Gaceta Dental, 104–120; Schmit, J. M., Regis, D. I., & Riley, M. A. (2005). Dynamic patterns of postural sway in ballet dancers and trackathletes. Experimental Brain Research, 163(3), 370–378; Veli, I., Uysal, T., Ozer, T., Ucar, F. I., & Eruz, M. (2011). Mandibular asymmetry in unilateral and bilateral posterior crossbitepatients using cone-beam computed tomography. Angle Orthodontist, 81(6), 966–974; Hrysomallis, C. (2007). Relationship between balance ability, training and sports injury risk. SportsMedicine; Caridi, V., & Galluccio, G. (2014). Correlation between Unilateral Posterior Crossbite, Mandibular Shift and jaw muscles: A review. WebmedCentral, 5(1); Michelotti, A.,Buonocore, G., Manzo, P., Pellegrino, G., & Farella, M. (2011). Dental occlusion and posture: An overview. Progress in Orthodontics, 12(1), 53–58.

Is there a relation between crossbite and/or an open bite, static postural behaviour, and the incidence of non-traumatic Injuries in young athletes?

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Is there a relation between crossbite and/or an open bite, static postural behaviour, and the incidence of non-traumatic Injuries in young athletes?

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