Examinando por Autor "Nazario Riquero, Renzo Nicolás"

Mostrando 1 - 2 de 2

Acceso abierto
Comparison of the strength of joining fiberglass posts to the root canal of a universal adhesive with and without acid
(Universidad Privada Norbert Wiener, 2019-11-05) Reyes Erquinigo, Carmen Rosa; Nazario Riquero, Renzo Nicolás
The objective of this study was to determine the bond strength of fiberglass posts to the root canal using a universal adhesive with and without acid etching. A total of 26 single-rooted premolars were studied. The crowns of the teeth were removed, leaving a root portion length of 14mm. Endodontic treatment was performed, filling 4mm of the canal, followed by biomechanical preparation of the canal for post cementation. The teeth were divided into two groups of 13 teeth each. In the first group, 37% phosphoric acid was applied for 15 seconds, followed by the universal adhesive Ambar (FGM), the All Cem cement (FGM), and the White post fiberglass post (FGM), all according to the manufacturer's recommendations. In the second group, the same protocol was followed, except that acid etching was omitted. Cross-sectional cuts of 1mm were made, with two cuts per third (cervical, middle, and apical). Each cut was tested using a universal testing machine (Pushot) to evaluate bond strength. Results: The average bond strength in the acid-etched group was 8.453 MPa, and in the non-etched group, the average bond strength was 8.76 MPa. Conclusion: No significant differences were found between both groups in terms of bond strength.
Acceso abierto
Level of quality of attention at the Private Dental Clinic New Smile according to the perceptions and expectations of patients, Lima 2018
(Universidad Privada Norbert Wiener, 2019-05-31) Mitma Prado, Noner; Nazario Riquero, Renzo Nicolás
This research aimed to evaluate the quality of care from patients' perspectives at the private dental clinic Nueva Sonrisa, considering both their perceptions and expectations. The study was observational, descriptive, prospective, and cross-sectional. The sample size consisted of 134 patients aged 22 to 39 years, who completed the SERVQUAL instrument, which is designed to assess the "service quality" provided by businesses. Results: It was observed that 58.3% of satisfied patients were aged between 22 and 27 years, with a significant relationship found. Regarding gender, 44.2% were men and 55.8% were women, with no significant relationship identified. Additionally, approximately 83% of the patients were recurring clients. Conclusion: The majority of patients expressed satisfaction with the service provided at the private dental clinic Nueva Sonrisa.