Clinical ResearchAssessment of masticatory function of mandibular implant-supported overdenture wearers: A 3-year prospective study
Section snippets
Material and methods
Human ethics approval was granted by the Ethics Committee of the Faculty of Dentistry, University of Malaya. A prospective longitudinal study design was used. The participants were recruited among those presented between 2008 and 2010 to clinics at the Faculty of Dentistry, University of Malaya requesting complete denture replacement. Inclusion criteria were participants with a minimum of 6 months of experience wearing complete dentures, who were willing to have new dentures, and who gave
Results
A total of 23 participants were initially recruited into the study (mean ±standard deviation [SD] age: 60.74 ±9.94) (Table 1). Almost one-third of the participants were female. Of 23 participants, 17 received telescopic crown attachments, and 6 received LOCATOR attachments. On average, participants had been edentulous for more than 4 years. The mean bone height was 21.46 mm, and the mean bone volume was 8131 mm3 (Table 1). One participant did not return for the 3-year follow-up appointment.
Discussion
The provision of implants to stabilize MODs has been reported to significantly improve masticatory function.5 This finding is consistent with that of the present study, in which a significant improvement in masticatory function was found after conversion to an MOD. Previous studies21, 22 used substrates such as peanuts, carrots, or synthetic substrates such as condensation silicone to assess masticatory performance, but patients with compromised oral conditions are unable to masticate these
Conclusions
Based on the findings of this clinical study, the following conclusions were drawn:
- 1.
Masticatory function measured by the mixing ability index and the mastication ability score showed significant improvement over 3 years in participants who converted to MODs.
- 2.
Baseline bone height and volume did not have any significant effect on the change in masticatory function after 3 years.
- 3.
A large Cohen effect size was preserved for the 3-year duration of the study after conversion to an MOD.
Acknowledgments
The authors thank Dr Kenji Fueki for allowing the use of the facility at Tokyo Medical and Dental University for the calculation of the MAI. Special acknowledgement to the University of Malaya, Kuala Lumpur, Malaysia, for the postgraduate research fund (PG221-2015A) allocation to this project.
References (45)
- et al.
Two implant retained overdentures - A review of the literature supporting the McGill and York consensus statements
J Dent
(2012) - et al.
A comparative study on complete and implant retained denture treatments: a biomechanics perspective
J Biomech
(2015) - et al.
Effect of implant-supported or retained dentures on masticatory performance: a systematic review
J Prosthet Dent
(2007) - et al.
A classification of the edentulous jaws
Int J Oral Maxillofac Surg
(1988) - et al.
Does mandibular edentulous bone height affect prosthetic treatment success?
J Dent
(2010) - et al.
Impact of facial form on the relationship between conventional or implant-assisted mandibular dentures and masticatory function
J Prosthet Dent
(2011) - et al.
Correlation between patient satisfaction with complete dentures and denture quality, oral condition, and flow rate of submandibular/sublingual salivary glands
Int J Prosthodont
(2003) The oral health-related quality of life in edentulous patients treated with conventional complete dentures
Gerodontology
(2013)- et al.
Evaluation of satisfaction and complications in patients with existing complete dentures
J Oral Sci
(2013) - et al.
Biting and chewing in overdentures, full dentures, and natural dentitions
J Dent Res
(2000)
Masticatory function with implant supported overdenture
J Dent Res
Post extraction remodeling of adult mandible
Cric Rev Oral Biol Med
Oral status and prosthetic factors related to residual ridge resorption in elderly subjects
Acta Odontol Scand
Residual ridge resorption, lower denture stability and subjective complaints among edentulous individuals
J Oral Rehabil
The effect of osteoporosis on residual ridge resorption and masticatory performance in denture wearers
Gerodontology
Signs of combination syndrome and removable partial denture wearing
Rev Odontol UNESP
Measuring patient satisfaction with mandibular prostheses
Community Dent Oral Epidemiol
Assessment of mastication with implications for oral rehabilitation: A review
J Oral Rehabil
Long-term, retrospective evaluation (implant and patient-centered outcome) of the two-implants-supported overdenture in the mandible. Part 1: survival rate
Clin Oral Implants Res
Masticatory function with mandibular implant-supported overdentures fitted with different attachment types
Eur J Oral Sci
Patient satisfaction and preference with magnet, bar-clip, and ball-socket retained mandibular implant overdentures: A cross-over clinical trial
Int J Prosthodont
Prosthetic aspects and patient satisfaction with two-implant-retained mandibular overdentures: A 10-year randomized clinical study
Int J Prosthodont
Cited by (10)
Design and the future of locking-taper screwless and cementless dental implants: a narrative review
2024, Frontiers of Oral and Maxillofacial MedicineOral function in completely edentulous patients rehabilitated with implant-supported dental prostheses: A systematic review and meta-analysis
2023, Clinical Oral Implants ResearchSingle mandibular implant study – chewing efficiency – 5-year results from a randomized clinical trial using two different implant loading protocols
2022, Journal of Prosthodontic Research
Supported by the University of Malaya, Malaysia (research grant no.: PG221-2015A).