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Introdução: O medo de sentir dor é um dos principais motivos pelos quais muitos pacientes evitam submeter-se a tratamento dentário, principalmente as crianças. Em vários procedimentos odontopediátricos, o uso de anestésicos locais se faz necessário. O aparelho Morpheus® se propõe a uma introdução da agulha sem dor e anestesia satisfatória com uso de menor volume de anestésico local. Associando-o à técnica CaZOE, o paciente perceberia a pressão antes da dor, podendo assim evitá-la. Objetivo: Avaliar a eficácia anestésica do Morpheus® através da técnica intrasseptal CaZOE na pulpotomia de molares inferiores decíduos. Material e método: Dezenove voluntários foram selecionados de acordo com os critérios de inclusão e exclusão. O procedimento foi realizado em sessão única, utilizando 0,9 mL de Articaína 4% com epinefrina 1:100.000, através da técnica anestésica CaZOE, empregando o injetor de anestésicos Morpheus®. Esta foi realizada por um único operador, não envolvido na avaliação dos parâmetros da anestesia, e seguiu as recomendações do fabricante. Para a análise dos dados, foi realizada estatística descritiva. Resultado: Dos 19 voluntários, 63% foram do sexo feminino e 37%, do masculino. Em pouco mais da metade da amostra (63%), houve sucesso na realização do procedimento. Os casos de insucesso (37%) ocorreram durante a abertura coronária e a amputação da polpa. Conclusão: A eficácia anestésica do Morpheus® através da técnica intrasseptal CaZOE na pulpotomia de molares inferiores decíduos foi constatada em 63% da amostra. Para que possa ser comprovada a eficácia desse sistema, são necessários mais estudos.

Introduction: The fear of pain is one of the main reasons why many patients avoid dental treatment, especially children. In several pediatric dentistry procedures, the use of local anesthetic is necessary. Morpheus® system proposes an insertion of the needle painlessly and satisfactory anesthesia with lower volume of local anesthetic. With the CaZOE technique, the patient realizes the pressure before the pain, thus being able to avoid it. Objective: To evaluate the anesthetic efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular's primary molars. Material and method: Nineteen volunteers were selected according to the inclusion and exclusion criteria. The study was conducted in a single session using 0.9 mL of Articaine 4% with epinephrine 1: 100,000 through anesthetic CaZOE technique, using the Morpheus®. This was carried out by a single operator not involved in the evaluation of anesthesia parameters and followed the manufacturer's recommendations. For data analysis, descriptive statistics was performed. Result: Of the 19 volunteers, 63% were female and 37% male. In just over half of the sample (63%), was successful in performing the procedure. Cases of failure (37%) occurred during coronary opening and removal of pulp. Conclusion: The efficacy of Morpheus® through intrasseptal technical CaZOE in pulpotomy of mandibular's primary molars was noted in 63% of the sample. Further studies should be carried out to prove this efficacy.

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Detailed knowledge of the possible anatomical and morphometric variations of the infraorbital foramen (IOF) is important for ensuring safe and successful regional anesthesia, and for avoiding iatrogenic nerve injuries during surgery on the middle third of the face. To conduct a morphometric study on the IOF, correlating this with sex and side of the cranium. Two hundred forty-two crania were used (148 male and 94 female). Measurements were made with the aid of digital calipers with precision to 0.01 mm. Presence of foramina and their multiplicity was also observed. The data were analyzed descriptively and analytically. Statistical significance was stipulated as 5% (P≤0.05). The IOF was found bilaterally in all the crania, and 26 of them presented multiplicity. The distance from the IOF to the anterior nasal spine was greater in males on both sides (P<0.001). Statistical differences between the sexes were also seen in relation to the following morphometric variables: height of the left IOF (P=0.007), width of the right IOF (P=0.004), and width of the left IOF (P=0.008), and the measurements were also larger among males. The IOF was present in all the crania and on both sides. It was morphometrically larger in males, on both sides.