Impact of Milled Peek versus Conventional Chrome Cobalt Framework on Retention of Definitive Obturators for Unilateral Total Maxillectomy Patients | ||
| Al-Azhar Journal of Dentistry | ||
| Volume 11, Issue 1, January 2024 | ||
| DOI: 10.58675/2974-4164.1607 | ||
| Author | ||
| Ibrahim Gamal El-Hussein | ||
| Lecturer of Removable Prosthodontics, Faculty of Dentistry, Sinai University (Kantara Branch) – Egypt | ||
| Abstract | ||
| Purpose: This study aimed to evaluate the effect of milled peek versus conventional chrome cobalt framework on the retention of definitive obturators for unilateral total maxillectomy patients. Subjects & Methods: A total of ten male patients with a unilaterally acquired maxillary defect were selected from the prosthodontics department's outpatient clinic, Faculty of Dentistry, Sinai University (Kantara branch). Patients were divided into two equal groups: Group I received a definitive obturator with a milled-peek framework, and Group II received a definitive obturator with a cobalt-chromium framework. Retention force was recorded at the time of insertion (T0), three months (T3), and six months (T6) later. The results were tabulated and statistically analyzed. Results: No significant difference was recorded between the two groups in initial retention forces (T0). However, a significant difference was observed between the groups at T3 and T6. Group I (PEEK) was associated with a significantly higher retention loss than Group II (metal). Conclusion: Within the limitations of this study, it can be concluded that: For definitive obturators, this retention force is acceptable regardless of PEEK's and Co-Cr's differences. When the obturator engages the same undercut, the chrome-cobalt framework outperforms the PEEK framework in terms of retention force. | ||
| Keywords | ||
| Definitive obturator; CAD/CAM; Chrome Cobalt framework; Poly-ether-ether ketone framework (Peek); retention force | ||
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