Browsing by Author "Morocho Llivizaca, Karina Viviana"

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A comparison of cephalometric measurements with conventional lateral cephalic 2D and reconstructed lateral cephalic of CBCT
(2022) Morocho Llivizaca, Karina Viviana; Bernal Pinos, Marco Vinicio; Bravo Calderón, Manuel Estuardo
Lateral cephalic radiography is mainly used to describe the morphology and growth of the craniofacial skeleton. It is considered a valuable diagnostic aid in orthodontics to plan treatment and evaluate the results. (1)(2) Cephalometric analyses requires identifying specific reference points and calculating various angular and linear dimensions. (3) Because cephalometry has been one of the most important diagnostic tools available to orthodontists for more than seven decades, different cephalometric norms have been published by leading physicians and researchers and it is used for: diagnosis, treatment progress, post-treatment evaluation, and research. (4) According to the orthodontic literature, other reconstructions such as lateral cephalic are known from more recent 3D cone beam computed tomography images. The attempt to develop 3D analysis and diagnosis is more interesting today. (4) (15) (23) Lateral cephalic radiographs are two-dimensional (2D) images that are used to represent three-dimensional (3D) structures. (5) Due to the different disadvantages of a 2D lateral cephalic X-ray: geometric distortion and the superposition of anatomical structures, 3D imaging has overcome the hurdle of 2D imaging by allowing orthodontists to visualize craniofacial structures without overlap or distortion.(6)(7)
Efecto de la intensidad de la luz de curado dental sobre las resinas dentales en cuanto a su estructura y forma: revisión de la literatura
(Universidad de Cuenca, 2023-10-06) Morocho Llivizaca, Karina Viviana; Ordóñez Tocto, Lourdes Margoth; Palacios Astudillo, Iván Andrés
Resin-based dental materials are widely used in restorative dentistry due to their esthetics, versatility, and durability, which is why light-curing is a crucial process in the polymerization of these materials. Objective: To identify the effect produced by the intensity of the light from the curing lamp on resin-based dental materials in terms of their structure and shape. Methodology: The present study is based on a bibliographic review, which takes scientific articles related to restorative dentistry as the axis of study, and the effects of light intensity of light-curing lamps on dental resins in terms of their structure and form, which will provide a literary update. Conclusion: An adequate light curing of the resins results in better mechanical properties and an incorrect light curing can negatively alter the properties of the material, causing sensitivity, microleakage, color instability, fatigue, wear, increased water absorption and solubility.
Efecto de la intensidad de la luz de curado dental sobre las resinas dentales en cuanto a su estructura y forma: revisión de la literatura
(2023) Morocho Llivizaca, Karina Viviana; Palacios Astudillo, Iván Andrés; Ordóñez Tocto, Lourdes Margoth
Resin-based dental materials are widely used in restorative dentistry due to their esthetics, versatility, and durability, which is why light-curing is a crucial process in the polymerization of these materials. Objective: To identify the effect produced by the intensity of the light from the curing lamp on resin-based dental materials in terms of their structure and shape. Methodology: The present study is based on a bibliographic review, which takes scientific articles related to restorative dentistry as the axis of study, and the effects of light intensity of light-curing lamps on dental resins in terms of their structure and form, which will provide a literary update. Conclusion: An adequate light curing of the resins results in better mechanical properties and an incorrect light curing can negatively alter the properties of the material, causing sensitivity, microleakage, color instability, fatigue, wear, increased water absorption and solubility.