Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study
Purpose: To compare stress distribution in polyacetyl based flexible RPD (FRPD) with cast metal RPD (CRPD) by using three-dimensional finite element analysis (FEA) and patient satisfaction by using OHIP-14 questionnaire in participants with Kennedy's class I partially edentulous mandibular arch...
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Elsevier
2021-10-01
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| Series: | Journal of Oral Biology and Craniofacial Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212426821000695 |
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| author | Niraj Kumar Dheeraj Kumar Koli Veena Jain Aditi Nanda |
| author_facet | Niraj Kumar Dheeraj Kumar Koli Veena Jain Aditi Nanda |
| author_sort | Niraj Kumar |
| collection | DOAJ |
| description | Purpose: To compare stress distribution in polyacetyl based flexible RPD (FRPD) with cast metal RPD (CRPD) by using three-dimensional finite element analysis (FEA) and patient satisfaction by using OHIP-14 questionnaire in participants with Kennedy's class I partially edentulous mandibular arch rehabilitated with CRPD and FRPD. Material and methods: For FEA, 3D models of Kennedy's class I partially edentulous mandibular arch, CRPD in chrome-cobolt alloy, and polyacetyl based FRPD were geometrically modelled and subjected to a vertical load of 100 N bilaterally. The in vivo comparison of satisfaction was assessed by enrolling 22 participants with Kennedy's class I partially edentulous mandibular arch. After randomization, 11 participants were rehabilitated by CRPD (group C), and 11 participants by polyacetyl based FRPD (group F). OHIP-14 questionnaire in Hindi language was filled at 1 week and 1 year after denture insertion. Results: Von Mises stress distribution in CRPD was maximum in mesial rest seat of the primary abutment (100 MPa) and minimum for edentulous ridge (7 MPa on bone and 6 MPa on mucosa). Von Mises stress distribution for polyaccetyl based FRPD was maximum in ridge (25 MPa) and minimum in periodontal ligament of the second premolar (3 MPa). Patient satisfaction in group F was significantly more than in group C at end of 1 year (P = .0158). Conclusion: FRPD is useful in periodontally compromised abutment teeth and CRPD in resorbed ridge conditions. Patient satisfaction is more with polyacetyl based flexible RPD when compared with cast metal RPD at the end of 1 year. |
| format | Article |
| id | doaj-art-f5f2bd99ffa94e1da5df5c38fee9d415 |
| institution | Kabale University |
| issn | 2212-4268 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Oral Biology and Craniofacial Research |
| spelling | doaj-art-f5f2bd99ffa94e1da5df5c38fee9d4152024-11-23T06:28:49ZengElsevierJournal of Oral Biology and Craniofacial Research2212-42682021-10-01114478485Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot studyNiraj Kumar0Dheeraj Kumar Koli1Veena Jain2Aditi Nanda3Department of Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, IndiaDepartment of Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, IndiaCorresponding author. S Room no: 212, 2nd floor, Department of Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India. Pin code: 110029.; Department of Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, IndiaDepartment of Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, IndiaPurpose: To compare stress distribution in polyacetyl based flexible RPD (FRPD) with cast metal RPD (CRPD) by using three-dimensional finite element analysis (FEA) and patient satisfaction by using OHIP-14 questionnaire in participants with Kennedy's class I partially edentulous mandibular arch rehabilitated with CRPD and FRPD. Material and methods: For FEA, 3D models of Kennedy's class I partially edentulous mandibular arch, CRPD in chrome-cobolt alloy, and polyacetyl based FRPD were geometrically modelled and subjected to a vertical load of 100 N bilaterally. The in vivo comparison of satisfaction was assessed by enrolling 22 participants with Kennedy's class I partially edentulous mandibular arch. After randomization, 11 participants were rehabilitated by CRPD (group C), and 11 participants by polyacetyl based FRPD (group F). OHIP-14 questionnaire in Hindi language was filled at 1 week and 1 year after denture insertion. Results: Von Mises stress distribution in CRPD was maximum in mesial rest seat of the primary abutment (100 MPa) and minimum for edentulous ridge (7 MPa on bone and 6 MPa on mucosa). Von Mises stress distribution for polyaccetyl based FRPD was maximum in ridge (25 MPa) and minimum in periodontal ligament of the second premolar (3 MPa). Patient satisfaction in group F was significantly more than in group C at end of 1 year (P = .0158). Conclusion: FRPD is useful in periodontally compromised abutment teeth and CRPD in resorbed ridge conditions. Patient satisfaction is more with polyacetyl based flexible RPD when compared with cast metal RPD at the end of 1 year.http://www.sciencedirect.com/science/article/pii/S2212426821000695Flexible RPDCast metal RPDFEAPatient satisfaction |
| spellingShingle | Niraj Kumar Dheeraj Kumar Koli Veena Jain Aditi Nanda Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study Journal of Oral Biology and Craniofacial Research Flexible RPD Cast metal RPD FEA Patient satisfaction |
| title | Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study |
| title_full | Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study |
| title_fullStr | Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study |
| title_full_unstemmed | Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study |
| title_short | Stress distribution and patient satisfaction in flexible and cast metal removable partial dentures: Finite element analysis and randomized pilot study |
| title_sort | stress distribution and patient satisfaction in flexible and cast metal removable partial dentures finite element analysis and randomized pilot study |
| topic | Flexible RPD Cast metal RPD FEA Patient satisfaction |
| url | http://www.sciencedirect.com/science/article/pii/S2212426821000695 |
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