PURPOSE: This study evaluated the initial stability of different implants placed above the bone level in different types of bone. MATERIALS AND METHODS: As described by Lekholm and Zarb, cortical layers of bovine bone specimens were trimmed to a thickness of 2 mm, 1 mm or totally removed to reproduce bone types II, III, and IV respectively. Three Implant system (Branemark System(R) Mk III TiUnite(TM), Straumann Standard Implant SLA(R), and Astra Tech Microthread(TM)-OsseoSpeed(TM)) were tested. Control group implants were placed in level with the bone, while test group implants were placed 1, 2, 3, and 4 mm above the bone level. Initial stability was evaluated by resonance frequency analysis. Data was statistically analyzed by one-way analysis of variance in confidence level of 95%. The effective implant length and the Implant Stability Quotient (ISQ) were compared using simple linear regression analysis. RESULTS: In the control group, there was a significant difference in the ISQ values of the 3 implants in bone types III and IV (P<.05). The ISQ values of each implant decreased with increased effective implant length in all types of bone. In type II bone, the decrease in ISQ value per 1-mm increase in effective implant length of the Branemark and Astra implants was less than that of the Straumann implant. In bone types III and IV, this value in the Astra implant was less than that in the other 2 implants. CONCLUSION: The initial stability was much affected by the implant design in bone types III, IV and the implant design such as the short pitch interval was beneficial to the initial stability of implants placed above the bone level.
Linear Models

No abstract available.
Logistic Models*

No abstract available.
Logistic Models*

No abstract available.
Linear Models*

No abstract available.
Linear Models*

No abstract available.
Linear Models

OBJECTIVE: This study describes the quality of Thiel soft-embalmed cadavers as training model for endoscopic sinus surgery in terms of color and consistency of the tissues and similarity of performing the surgical steps to live surgery.

METHODS: This is a cross-sectional descriptive study. Six Thiel soft-embalmed cadavers from the University of the Philippines, College of Medicine, Department of Anatomy were used as training models. The Thiel-preserved cadavers utilized the soft embalming protocol being employed at the Virginia State Anatomical Program in Richmond, Virginia, USA. Ten otorhinolaryngologists were recruited to evaluate the cadavers using a questionnaire with three parts. The first two parts utilize a 10-point Likert scale with 1 as the least similar to live patient while 10 as simulating the live patient. The third part is an open-ended question regarding the suitability of Thiel soft-embalmed cadavers in the training for endoscopic sinus surgery.

RESULTS: Endoscopic sinus surgery was successfully performed in all cadavers. The Thiel soft-embalmed cadaver closely replicates the color and consistency of the anatomic structures important in endoscopic sinus surgery. All the surgical steps were performed with ease simulating live surgery.

CONCLUSION: Thiel soft-embalmed cadaver is a suitable model for training in endoscopic sinus surgery.

Commitment has been associated with quality nursing care because it contributes to the understanding of finding meaning and value of work. This article describes the Theory on Commitment and Care in Nursing that focus on how the nurses' commitment in an organization affects the nursing care they are providing to the patients. The factors that affect a person's commitment are job satisfaction, work autonomy, trainings, working environment conditions, pay and benefits, investments, retirement plans, obligations, return service. These factors play a vital role in the commitment of nurses and thus, reflect on the delivery of the nursing practice to the patients. The model shows the framework and the relationship of the internal factors inside the workplace that influence the quality of patient care. It presents how these internal factors could strengthen or weaken the nurses' commitment to patient care. This commitment propels the nurse to achieve his/her goals in the nursing process.

Non-specific spinal pain is a leading cause of disability worldwide and traditional approaches to management have failed to address the societal burden of spinal pain. This narrative review describes the shift in approach to the management of non-specific spinal pain over the past two decades and outlines key recommendations in modern practice guidelines that are informed by these changes. Implementation of evidence-based practice for spinal pain remains a challenge.
Models, Biopsychosocial

With the progresses of the research on "Digital Human", more and more information has been needed for the setting up of the three-dimensional digital models of human organs. In the present paper, based on the method of block mapping with a normal-style bump mapping method, we normalized the vector of the surface of the models, computed offset of the texture coordinates and added to them. The projection of the coordinates to the tangential space complemented the disturbance to the vector of models' surface. The method was proposed with bump texture mapping on the surface of the biological models of organs to improve the impression of the visualization of the organ models and to enhance the sense of reality of the models.
Humans ; Models, Anatomic ; Models, Biological