Elderly individuals Baseline and 3 Assess effects HA, HEO, JIN, PAIK requiring dentures Longitudinal months post OHIP-14 (K) - of Korean 17 439 73.62 (6.07) Yes AND BAE (2012) (beneficiaries of the observational receiving dentures Korean version National Korean NDS) through NDS denture service Individuals with HARDER, WOLFART, conventional dentures OHIP-49 (G) Longitudinal Baseline and 4 18 EGERT AND KERN switching to implant 11 66.7 Chewing ability No German version observational weeks follow-up (2011) supported mandibular dentures Baseline Difference in HEYDECKE, 2 groups (edentulous) 2 & 6 general health LOCKER, AWAD, Mandibular implant 68.9 (3.2) Longitudinal 19 55 month follow-ups OHIP -20 status in No LUND AND FEINE retained dentures; 69.4 (2.7) observational (6 months only for elderly (2003a) Conventional dentures SF-36) SF-36 HEYDECKE G, Whether TEDESCO LA, Postal cross coping styles 1 group of (edentulous) OHIP-14 20 KOWALSKI C, 249 66 (12) sectional One measurement influence No Completer dentures INGLEHART MR survey OHQOL, Brief (2004) COPE HEYDECKE, Cost 2 groups (edentulous) Baseline (pre PENROD, effectiveness Mandibular implant Longitudinal and one OHIP -20 21 TAKANASHI, LUND, 48 70.5 between two No retained dentures; observational year post insertion FEINE AND types of Conventional dentures of dentures THOMASON (2005a) dentures
17 HA, HEO, JIN, PAIK AND BAE (2012) Elderly individuals requiring dentures (beneficiaries of the Korean NDS) 439 73.62 (6.07) Longitudinal observational Baseline and 3 months post receiving dentures through NDS OHIP-14 (K) - Korean version Assess effects of Korean National denture service Yes 18 HARDER, WOLFART, EGERT AND KERN (2011) Individuals with conventional dentures switching to implant supported mandibular dentures 11 66.7 Longitudinal observational Baseline and 4 weeks follow-up OHIP-49 (G) German version Chewing ability No 19 HEYDECKE, LOCKER, AWAD, LUND AND FEINE (2003a) 2 groups (edentulous) Mandibular implant retained dentures; Conventional dentures 55 68.9 (3.2) 69.4 (2.7) Longitudinal observational Baseline 2 & 6 month follow-ups (6 months only for SF-36) OHIP -20 Difference in general health status in elderly SF-36 No 20 HEYDECKE G, TEDESCO LA, KOWALSKI C, INGLEHART MR (2004) 1 group of (edentulous) Completer dentures 249 66 (12) Postal cross sectional survey One measurement OHIP-14 Whether coping styles influence OHQOL, Brief COPE No 21 HEYDECKE, PENROD, TAKANASHI, LUND, FEINE AND THOMASON (2005a) 2 groups (edentulous) Mandibular implant retained dentures; Conventional dentures 48 70.5 Longitudinal observational Baseline (pre and one year post insertion of dentures OHIP -20 Cost effectiveness between two types of dentures No