The effect of implant placement in patients with either Kennedy class II and III on oral health‐related quality of life: a prospective clinical trial

Abstract

There is little evidence of the effect of implants restored with fixed partial dentures on oral health-related quality of life (OHRQoL) in partially edentulous Kennedy class II and III patients. The aim of this study was to determine the change in OHRQoL in Kennedy classification II and III patients treated with a two-implant-supported fixed dental prosthesis (FDP). Kennedy class II and III patients received dental implants and an FDP. Oral health-related quality of life was measured by administration of the Oral Health Impact Profile-14 (OHIP-14NL) questionnaire at intake (T1), 2 weeks after surgery (T2) and after 1 year of loading (T3). The mean OHIP score at T1 was 6·5 ± 1·2, 2·4 ± 1·0 at T2, and 0·9 ± 0·3 at T3. There was a statistically significant difference between T1 and T2 (P = 0·002) and T1 and T3 (P < 0·001) but not between T2 and T3 (P = 0·407). The OHIP score in Kennedy II patients decreased from 4·8 ± 3·2 at T1 to 1·5 ± 2·0 at T2 and 1·1 ± 1·8 at T3, and that in Kennedy III patients decreased from 8·9 ± 9·6 at T1 to 3·6 ± 8·9 at T2 and 0·8 ± 2·2 at T3. There were no statistically significant differences in the reductions in Kennedy II and III patients. Oral health-related quality of life changed positively in patients treated with implants and an FDP in both groups. There was no change in OHRQoL between the times of implant placement and FDP placement.

Location of implant‐retained fixed dentures affects oral health‐related quality of life

“…The authors observed better QoL after implant treatment than other types of treatment . Excellent treatment outcomes, as evaluated by OHRQoL improvements, have been reported in other studies of patients with posterior implant‐retained fixed dentures . One study reported significant OHRQoL improvements following an implant for a unilateral posterior free‐end edentulous space, while no significant difference in OHRQoL was observed in a patient with a bounded posterior edentulous space .…”

“…In fact, the literature suggests that there are generally better treatment outcomes for fixed prostheses than for removable prostheses . The effects of the location of the prosthodontic treatment on clinically relevant changes in OHRQoL have also been reported in several studies . One study on the effects of removable and fixed prosthodontic treatments on changes in OHRQoL according to the location of the treatment reported that patients who underwent treatment in the anterior region have higher impairments in pretreatment OHRQoL, which is improved following both types of treatments.…”

“…2,3,7 The effects of the location of the prosthodontic treatment on clinically relevant changes in OHRQoL have also been reported in several studies. [8][9][10][11][12][13][14] One study on the effects of removable and fixed prosthodontic treatments on changes in OHRQoL according to the location of the treatment reported that patients who underwent treatment in the anterior region have higher impairments in pretreatment OHRQoL, which is improved following both types of treatments. In contrast, replacement of posterior teeth with removable partial dentures did not result in a significant improvement in OHRQoL.…”

“…10 Excellent treatment outcomes, as evaluated by OHRQoL improvements, have been reported in other studies of patients with posterior implant-retained fixed dentures. 11,12 One study reported significant OHRQoL improvements following an implant for a unilateral posterior free-end edentulous space, while no significant difference in OHRQoL was observed in a patient with a bounded posterior edentulous space. 13 It has also been reported that replacement of missing teeth with single dental implants in molar areas does not necessarily improve perceived oral health, while implants in the anterior and premolar areas significantly improve perceived oral health.…”

Micromovement Evaluation of Original and Compatible Abutments at the Implant–abutment Interface

“…Dental implant therapy has been widely accepted as a successful procedure used to replace missing teeth in order to restore masticatory function 1 in both partial 2 and complete 3 edentulous cases. It was particularly shown to be successful in single-tooth replacements for both the anterior and posterior regions of the jaws.…”