Browsing by Author "Lalangui Matamoros, Joe Javier"

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Light intensity of the light-curing units in private clinics in the city of Cuenca, Ecuador
(Universidad de Cuenca, 2021-01-20) Ajila Bohórquez, Ana Mischell; Lalangui Matamoros, Joe Javier; Palacios Astudillo, Iván Andrés
Introduction: Light intensity emitted by the curing lamps represents an essential factor in the activation of photosensitive materials. The adequate supply of intensity, as well as the correct functioning of the device, it ensures a correct dental treatment. Objective: To know the light intensity, type, and fiber state of the curing lamps used in private dental offices in the city of Cuenca - Ecuador. Materials and methods: The cross-sectional descriptive study assessed the light intensity of 366 light-curing lamps from private clinics with the use of a Bluephase Meter II radiometer, besides the Likert-scale based evaluation of its type and condition. Data analysis was done with the software R v.3.2 and its interface R-Studio v.1.2. Results: Inadequate light intensities were observed in 18% of the total analyzed units. Inadequate light intensities corresponded at 46% of Halogen lamps, and 12% of LED units. Likewise, 17% of units presented fiber fracture, while 52% showed residues of biomaterials on it. The predominant diameter in the units was 8mm, representing 65% of the total of light-curing lamps analyzed. Conclusions: LED lamps presented adequate light intensities in higher proportion in comparison to halogen lamps. It was shown that the presence of fractures and residues decrease the intensity of the photocuring units. Furthermore, we indicate that a periodic control of the lightcuring units is necessary to prevent future problems in oral treatments.
Light intensity of the light-curing units in private clinics in the city of Cuenca, Ecuador
(2020) Villalta Mendoza, Fernando Mauricio; Rodas Jaramillo, Anabel Priscila; Lalangui Matamoros, Joe Javier; Ajila Bohorquez, Ana Mischell; Palacios Astudillo, Iván Andrés
Métodos diagnósticos para estudio de anomalías dentomaxilares en sentido transversal. Revisión bibliográfica
(2020) Molina Alvarado, Maria Alejandra; Barzallo Sardi, Vinicio Egidio; Yunga Picon, Maria Yolanda; Lalangui Matamoros, Joe Javier; Juca Guaman, Claudia Valeria; Lasso Cabrera, Gustavo Eduardo
The existing information of diagnostic methods on the sagittal and vertical dimensions is extensive, however, there is few literature that indicates which are the available methods that have been developed over time for the diagnosis of dentomaxillary problems in the transversal direction. The importance of the study of the transverse plane in orthodontics is known; furthermore, orthodontists have identified that transverse maxillary deficiencies constitute many of the malocclusions. The objective of this study was to describe different methods implemented through history for the diagnosis of transverse dentomaxillary problems. The methods described included: clinical methods such as observation, palpation and Izard's index; analysis of study models such as Pont index, Korkhaus index, McNamara, Mayoral analysis, Hayes analysis and Andrews element III analysis; Ricketts P-A radiographic method and tomographic methods including the UPenn method. The present literature review was carried out through a bibliographic compilation of studies related to transverse diagnostic methods. It is important that each professional, under their own criteria and based on the information presented, choose the most convenient method.