PubMed · 12397256
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Selçuk Oruç. 2002. Handmade fixed partial prosthesis remover.. https://doi.org/10.1067/mpr.2002.127882
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AIM: To evaluate a simulation laboratory course that used student-centred small-group problem-orientated discussion activities as the main medium of instruction. METHODS: A structured questionnaire using a six-point Likert scale with 30 statements relating to a fixed prosthodontics course was distributed to 4th-year and 5th-year students who had completed the course. RESULTS: A 93% response rate was achieved for both years with a mean score for the 4th-year being 94.2 (+/- 13.7) and the 5th-year 107.5 (+/-16.9). The differences between the scores of both years are highly significant (P = 0.0006) indicating that the 5th-year were more favourable about the course and learning approach used. Consistency and reliability of the questionnaire was judged reliable according to Cronbach's alpha (4th-year = 0.7, 5th-year = 0.83). Many aspects of the small-group student-centred activities were highly valued by students however, students expressed a preference for learning and interacting with teachers than colleagues. CONCLUSION: Small-group student-centred learning activities were reported as creating an active, safe learning environment with beneficial opportunities for peer-peer interaction such as questioning, teaching and learning from students. However, students expressed a preference for teacher-centred information dissemination and activities. An understanding of the rationale of student dependence to teacher-centred learning may allow improved modifications in a student-centred learning environment.
The quality of dentures is most fully evaluated by corrosion resistance of their polished surfaces. The main drawback of steel dentures is due to the structure of stainless steel as a metallurgical alloy: it possesses carbide and titanium nitride microclots (liquations). Other shortcoming of technological processes of permanent denture making are such operations as chemical etching and soldering. Use of new finishing technologies will minimize the intensity of electrochemical processes in the oral cavity. The quality of a permanent denture can be evaluated by roughness and trace defects of its functional surfaces.