PurposeThe purposes of this study were to develop a workstation computer that allowed intraoperative touchless control of diagnostic and surgical images by a surgeon, and to report the preliminary experience with the use of the system in a series of cases in which dental surgery was performed.Materials and MethodsA custom workstation with a new motion sensing input device (Leap Motion) was set up in order to use a natural user interface (NUI) to manipulate the imaging software by hand gestures. The system allowed intraoperative touchless control of the surgical images.ResultsFor the first time in the literature, an NUI system was used for a pilot study during 11 dental surgery procedures including tooth extractions, dental implant placements, and guided bone regeneration. No complications were reported. The system performed very well and was very useful.ConclusionThe proposed system fulfilled the objective of providing touchless access and control of the system of images and a three-dimensional surgical plan, thus allowing the maintenance of sterile conditions. The interaction between surgical staff, under sterile conditions, and computer equipment has been a key issue. The solution with an NUI with touchless control of the images seems to be closer to an ideal. The cost of the sensor system is quite low; this could facilitate its incorporation into the practice of routine dental surgery. This technology has enormous potential in dental surgery and other healthcare specialties.

Background:The quantification of the dental plaque (DP) by indices has limitations: They depend on the subjective operator's evaluation and are measured in an ordinal scale. The purpose of this study was to develop and evaluate a method to measure DP in a proportional scale.Materials and Methods:A portable photographic positioning device (PPPD) was designed and added to a photographic digital single-lens reflex camera. Seventeen subjects participated in this study, after DP disclosure with the erythrosine, their incisors, and a calibration scale ware photographed by two operators in duplicate, re-positioning the PPPD among each acquisition. A third operator registered the Quigley-Hein modified by Turesky DP index (Q-H/TPI). After tooth brushing, the same operators repeated the photographs and the Q-H/TPI. The image analysis system (IAS) technique allowed the measurement in mm2 of the vestibular total tooth area and the area with DP.Results:The reliability was determined with the intra-class correlation coefficient that was 0.9936 (P < 0.05) for the intra-operator repeatability and 0.9931 (P < 0.05) for inter-operator reproducibility. The validity was assessed using the Spearman's correlation coefficient that indicated a strong positive correlation with the Q-H/TPI rs = 0.84 (P < 0.01). The sensitivity of the IAS was evaluated with two sample sizes, only the IAS was able to detect significant differences (P < 0.05) with the sample of smaller size (n = 8).Conclusions:Image analysis system showed to be a reliable and valid method to measure the quantity of DP in a proportional scale, allowing a more powerful statistical analysis, thus facilitating trials with a smaller sample size.

<p>El biofilm dental es el principal factor etiológico de caries dental y enfermedades gingivoperiodontales, siendo el cepillado dental el método más confiable para su control. La higiene oral debe ser implementada desde edades tempranas para introducir al niño en el cuidado de su salud oral, disponiéndose para tal fin de variados diseños de cepillos manuales y eléctricos.</p>

<p>Las maloclusiones originadas en las interferencias dentarias tienen alta prevalencia en la población de Latinoamérica, por lo que son consideradas un problema de salud pública, que puede ser tratado con técnicas sencillas y económicas por todos los odontólogos. El desarrollo y crecimiento normal de las diferentes estructuras de un niño surge del equilibrio entre las diversas funciones. El profesional debe conocer las características y cambios normales de la oclusión, para así interceptar las alteraciones y evitar su instalación. La alimentación es un factor decisivo en la formación del sistema estomatognático, ya que dependiendo de su solidez será el tipo de masticación y su influencia sobre las estructuras. Las interferencias más comunes en la dentición primaria son las caninas. Su detección precoz y su pronta intervención por medio de desgastes, permitirá un normal desarrollo estomatognático, y evitará maloclusiones en la dentición permanente, o disminuirá el tiempo y necesidad de tratamientos correctivos.</p><p> </p>

<p>El objetivo del presente trabajo fue realizar una<br />restauración indirecta de resina de fotocurado de<br />clase II en un segundo molar primario y presentar<br />los pasos operatorios realizados como una alternativa<br />estética terapéutica. Paciente de 8 años de<br />edad de sexo femenino asistió para su rehabilitación<br />integral a la Especialidad de Odontopediatría de la<br />Facultad de Odontología de la UNNE. Al examen clínico<br />la pieza dentaria 6.5 presentó una caries inactiva<br />de Clase II compleja, en la cual dentro del plan<br />de tratamiento rehabilitador se decidió realizar una<br />restauración indirecta de resina de fotocurado. Las<br />restauraciones indirectas para molares con resina<br />de fotocurado confeccionado extraoralmente, son<br />una posible alternativa estética, permitiendo optimizar<br />las condiciones clínicas de trabajo y mejorar<br />las propiedades finales del material restaurador.</p>