This study indicated that distoclusion decreased significantly with age and was more prevalent in siblings of children with Class II molar relation as compared with the prevalence for the total population. Children of middle socioeconomic status (SES) and girls with Class I molar relation had prevalences of posterior crossbite significantly greater than lower SES children and boys, respectively...

Gum recession is a pathological condition of periodontal tissues, which manifested by apical displacement the gingival margin, has multifactorial genesis. Patients with this pathology are concerned about aesthetic disorders. Many researchers note high prevalence pathology. observed in all age groups from 45-85%. A special place among factors contributing to development gum occupied anatomical a...

The correction of functional posterior crossbite through Planas Direct Tracks has many characteristics that can become advantages. The aim of this study was to present a clinical case showing how to use this procedure for early correction with resources available through public health services. The patient, a 4-year-old girl, arrived to receive treatment due to a functional unilateral crossbite...

Prof. Pedro Planas of Spain initially developed PDTs,1 and Simoes11 adapted them for early prevention of anterior or posterior crossbite. PDTs should be used in the deciduous dentition only, as they cover the occlusal surfaces of the molars, resulting in a flat posterior occlusion until the molars are exfoliated. PDTs can be built in the laboratory using an indirect technique. A wax bite regist...

Posterior crossbite is defined as an inadequate transversal relationship of maxillary and mandibular teeth. Even when eliminating the etiologic factors, this malocclusion does not have a spontaneous correction, and should be treated with maxillary expansion as early as possible. This treatment aims at providing a better tooth/skeletal relationship, thereby improving masticatory function, and es...

Unilateral posterior crossbite often involves only one tooth, especially upper first molar; in these cases it is never easy to obtain an asymmetrical movement of a molar and a proper planning of the orthodontic device with its anchorage is necessary to avoid arch overexpansion. Thanks to its simplicity and efficacy, the modified Quad Helix here described represents a valid therapeutic tool in c...

OBJECTIVE To assess the occurrence of bruxism in deciduous dentition and a potential association between the habit and the presence or absence of posterior crossbite. METHODS A total of 940 patient files were assessed. They were gathered from the archives of University of São Paulo City--UNICID; however, 67 patient files were dismissed for not meeting the inclusion criteria. Therefore, 873 ch...

It has been suggested that malocclusions may influence whole body posture, including leg length, but the current scientific evidence to support this statement is poor. The aim of the present study was to investigate a possible association between leg length inequality (LLI) and unilateral posterior crossbite. A survey was carried out in young adolescents recruited from three schools. The sample...

Temporomandibular disorder (TMD) is a generic term for several clinical signs and symptoms involving the masticatory muscles, the temporomandibular joints, and the associated head and neck structures. Clinical signs include clicking, disc displacement and tenderness on palpation of the masticatory muscles, and patient complaints of headaches. The authors noted that there is controversy on wheth...