IADR Abstract Archives
OHRQoL Clinical Study of PEEK vs. Co/Cr Removable Partial Dentures
Objectives: Cobalt Chrome (Co/Cr) alloy is the material of choice for fabrication of tooth-supported removable partial denture (RPD) frameworks. Advanced manufacturing enables fabrication of RPD frameworks using PEEK (polyether-ether-ketone), a high-performance biocompatible polymer. Currently, it’s not known which material patient’s prefer or their relative effects on oral health-related quality of life (OHRQoL). The aim was to compare, by means of a randomised crossover-controlled clinical study, patient preference and changes in OHRQoL and health-related quality of life (HRQoL) for RPDs with two framework materials; PEEK, JUVORA™Clasp Denture (JUVORA, UK) and Co/Cr.
Methods: Thirty patients attending a UK dental hospital were invited to participate in this study. Patients with advanced or significant primary disease or symptomatic endodontic pathology were excluded.
Twenty-six patients were randomly allocated to receive RPDs with PEEK or Co/Cr frameworks of same design, but optimised for the properties of the materials. After four-weeks, patients returned for assessment, oral prophylaxis and were given RPDs of the second material. After a further four-weeks, assessments were repeated and patients selected their preferred denture. At baseline and each four-week review patients completed measures of OHRQoL (OHIP-20) and HRQoL (SF12-v2).
Results: Twenty-five patients completed four-week evaluation of dentures. Thirteen preferred the JUVORA™Clasp Denture against twelve preferring Co/Cr.
OHRQoL improved similarly from baseline for both RPDs; mean improvement for Co/Cr was 13.96 (SD=16.34) and12.42 (SD=17.63) for JUVORA™Clasp Dentures. For HRQoL, mean changes in SF-12 scores were: 1.76-point improvement in physical component score (PCS) and 0.69-point reduction in mental component score (MCS) for Co/Cr dentures, versus 2.96-point improvement in PCS and 1.34-point reduction in MCS for JUVORA™Clasp dentures.
Conclusions: Whilst the difference in patient preference isn’t clinically significant, results are encouraging and provide a basis for optimisation of design and fabrication. Poly-aryl-ether-ketones (PAEK) materials have potential as an alternative to Co/Cr alloys for RPD frameworks.
Methods: Thirty patients attending a UK dental hospital were invited to participate in this study. Patients with advanced or significant primary disease or symptomatic endodontic pathology were excluded.
Twenty-six patients were randomly allocated to receive RPDs with PEEK or Co/Cr frameworks of same design, but optimised for the properties of the materials. After four-weeks, patients returned for assessment, oral prophylaxis and were given RPDs of the second material. After a further four-weeks, assessments were repeated and patients selected their preferred denture. At baseline and each four-week review patients completed measures of OHRQoL (OHIP-20) and HRQoL (SF12-v2).
Results: Twenty-five patients completed four-week evaluation of dentures. Thirteen preferred the JUVORA™Clasp Denture against twelve preferring Co/Cr.
OHRQoL improved similarly from baseline for both RPDs; mean improvement for Co/Cr was 13.96 (SD=16.34) and12.42 (SD=17.63) for JUVORA™Clasp Dentures. For HRQoL, mean changes in SF-12 scores were: 1.76-point improvement in physical component score (PCS) and 0.69-point reduction in mental component score (MCS) for Co/Cr dentures, versus 2.96-point improvement in PCS and 1.34-point reduction in MCS for JUVORA™Clasp dentures.
Conclusions: Whilst the difference in patient preference isn’t clinically significant, results are encouraging and provide a basis for optimisation of design and fabrication. Poly-aryl-ether-ketones (PAEK) materials have potential as an alternative to Co/Cr alloys for RPD frameworks.