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      Avaliação da angulação e inclinação dos elementos dentários em pacientes adultos jovens portadores de fissura transforame incisivo bilateral Translated title: Evaluation of tipping and inclination of teeth in young adults with complete bilateral cleft lip and palate

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          Abstract

          OBJETIVO: desse trabalho foi avaliar e mensurar o posicionamento dentário (angulação e inclinação) em pacientes com fissura transforame incisivo bilateral, no intuito de determinar características comuns a esses pacientes. METODOLOGIA: Para tanto, foram selecionados aleatoriamente, a partir do arquivo do Hospital de Reabilitação de Anomalias Craniofaciais da Universidade de São Paulo (HRAC-USP), trinta pares de modelos de gesso dos arcos dentários de pacientes operados, portadores deste tipo de fissura e em estágio de dentadura permanente, com idades entre 12 e 27 anos. Os modelos foram preparados e as medidas realizadas, baseando-se na metodologia proposta por Andrews¹. RESULTADOS: Os resultados obtidos foram: 1. Angulação - no arco superior, valores positivos (angulação positiva), com tendência crescente progressiva, de molares para caninos e para os incisivos, valores negativos (contra-angulação). No arco inferior, valores positivos decrescentes de molares para pré-molares e negativos em toda a região anterior; 2. Inclinação - valores negativos, correspondentes a inclinação palatina ou lingual, para todos os dentes da amostra. CONCLUSÕES: Conclui-se que os caninos e incisivos superiores foram os dentes mais afetados pela presença da fissura; o arco inferior manteve valores mais uniformes, devido à menor interferência da fissura; inclinações negativas em todo o arco inferior e apinhamentos anteriores freqüentes sugerem a compensação inferior à maxila atrésica.

          Translated abstract

          The aim of this study was to evaluate and measure the tooth positioning (tipping and inclination) in patients with complete bilateral cleft lip and palate in an attempt to establish the features common to these patients. For that purpose, thirty pairs of dental casts were randomly selected from the files of the Hospital of Rehabilitation of Craniofacial Anomalies. The dental casts had been obtained from treated patients with this type of cleft in the permanent dentition, aged 12 to 27 years. The casts were prepared and the measurements were performed based on the method suggested by Andrews¹. The results achieved were the following: 1. Tipping - in the maxillary arch, positive values (positive tipping) with a progressively increasing tendency were observed from the molars to the canines, and negative values for the incisors (counter-tipping). As regards the mandibular arch, decreasing positive values were found from the molars to the premolars and negative values were observed for the entire anterior region; 2. Inclination - negative values, corresponding to palatal or lingual inclination, were found for all teeth in the sample. It was concluded that the maxillary canines and incisors were the teeth most affected by the presence of the cleft; the mandibular arch kept more uniform values due to the middle influence from the cleft; the negative inclinations observed for the entire mandibular arch and the frequent anterior crowding suggest adaptation of the mandibular arch to compensate the maxillary atresia.

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          Most cited references30

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          The PAR Index (Peer Assessment Rating): methods to determine outcome of orthodontic treatment in terms of improvement and standards.

          In orthodontics it is important to objectively assess whether a worthwhile improvement has been achieved in terms of overall alignment and occlusion for an individual patient or the greater proportion of a practitioner's caseload. An objective measure is described that has been validated against the subjective opinions of 74 dentists. Using the weighted PAR Index it was revealed that at least a 30 per cent reduction in PAR score is required for a case to be considered as 'improved' and a change of 22 PAR points to bring about 'great improvement'. For a practitioner to demonstrate high standards the proportion of an individual's case load falling in the 'worse or no different' category should be negligible and the mean reduction should be as high as possible (e.g. greater than 70 per cent). If the mean percentage reduction in PAR score is high and the proportion of cases that have been 'greatly improved' is also high, this indicates that the practitioner is treating a great proportion of cases with a clear need for treatment to a high standard.
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            A study of facial growth in patients with bilateral cleft lip and palate treated by the Oslo CLP Team.

            G Semb (1990)
            Lateral and frontal cephalometric analysis of a mixed longitudinal survey of 90 individuals with complete bilateral clefts of the lip and palate from the Oslo Growth Archive is described. All subjects were treated and followed-up by the Olso CLP Team according to strictly defined protocols for treatment and documentation. Craniofacial form in this sample is generally similar to that reported for Caucasian subjects treated for this condition elsewhere.
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              A study of facial growth in patients with unilateral cleft lip and palate treated by the Oslo CLP Team.

              G Semb (1991)
              Lateral and frontal cephalometric analysis of a mixed longitudinal survey of 257 individuals with complete unilateral cleft lip and palate from the Oslo CLP Growth Archive is described. All subjects were treated and followed up by the Oslo CLP Team according to strictly defined protocols for treatment and documentation. Craniofacial form for this sample is generally similar to that reported for Caucasian children treated for this condition elsewhere.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                dpress
                Revista Dental Press de Ortodontia e Ortopedia Facial
                Rev. Dent. Press Ortodon. Ortop. Facial
                Dental Press Editora (Maringá )
                1980-5500
                February 2008
                : 13
                : 1
                : 113-123
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                [2 ] Universidade de São Paulo Brazil
                Article
                S1415-54192008000100013
                10.1590/S1415-54192008000100013
                14eaed9c-0272-4d44-b8d7-4327883965fc

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1415-5419&lng=en
                Categories
                DENTISTRY, ORAL SURGERY & MEDICINE

                Dentistry
                Orthodontics,Orthodontic brackets,Cleft lip and palate,Ortodontia,Braquetes ortodônticos,Fissura lábio palatal

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