Masticatory function parameters in patients with varying degree of mandibular bone resorption

Marcello-Machado, Raissa Micaella; Bielemann, Amália Machado; Pinto, Luiz Fernando Spinelli; Cury, Altair Antoninha Del Bel; Faot, Fernanda

doi:10.1016/j.jpor.2016.12.002

Cited by 41 publications

(39 citation statements)

References 22 publications

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“…Thus, the OHRQoL is impacted by a functional limitation caused by an unsatisfactory masticatory function of these individuals, which may be caused by irregular muscle activity or energy flow during mastication . This agrees with previous studies that pointed out that the lack of retention and instability found in complete dentures cause functional limitation, negatively impacting OHRQoL …”

Section: Discussionsupporting

confidence: 93%

“…Conventional complete dentures are still widely used to rehabilitate edentulous individuals in regions with economic limitations . However, a large number of complete denture wearers complain about the lack of retention and stability, especially in the mandible, which directly influences the masticatory function . Two implant‐retained mandibular overdentures provide a simple and cost‐effective alternative that should be implemented more frequently in low‐ and middle‐income countries .…”

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confidence: 99%

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Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Miranda

Possebon

Schuster

et al. 2019

Journal of Prosthodontics

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Purpose To investigate the influence of impaired masticatory function on the oral health‐related quality of life of conventional complete denture wearers before and after the transition to implant‐retained mandibular overdentures. Materials and Methods Masticatory function and oral health‐related quality of life were evaluated in 40 edentulous patients after 3 months of adaptation to complete dentures and after transition to implant‐retained mandibular overdentures. Masticatory function was evaluated through the swallowing threshold test with a standardized portion of an artificial test food (Optocal) to determine median particle size (×50) and homogenization index (B). After the test, the masticatory function outcomes were used to categorize patients in 2 groups according to chewing performance: (i) satisfactory or (ii) unsatisfactory. The cutoff value for ×50 was based on a preestablished value of 3.68 mm, whereas for the B index, median values were adopted for categorization. The oral health‐related quality of life was analyzed via the Oral Health Impact Profile for Edentulous Adults (OHIP‐EDENT) questionnaire. The Mann‐Whitney test was used to compare masticatory function outcomes and OHIP‐EDENT scores, and associations were checked using the Spearman correlation test and multiple linear regression. Results Masticatory function was significantly correlated with functional limitation (p = 0.02) and physical disability (p = 0.04) for complete denture wearers with unsatisfactory masticatory function. After the transition to implant‐retained mandibular overdentures, only the psychological discomfort domain (p = 0.02) was influenced by the masticatory function category. Multiple linear regression analysis revealed that only the functional limitation domain (p < 0.001) of the complete denture wearers was associated with masticatory function outcomes. Conclusions Implant‐retained mandibular overdentures eliminate the problems that lead to functional limitations, consequently improving masticatory function and oral health‐related quality of life of these individuals; however, patients with unsatisfactory masticatory function after transition to implant‐retained mandibular overdentures still experience more psychological discomfort.

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Section: Discussionsupporting

confidence: 93%

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confidence: 99%

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Miranda

Possebon

Schuster

et al. 2019

Journal of Prosthodontics

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“…It should be pointed out that in Pan et al's study, of a total of 214 edentulous patients evaluated, 82.35% belonged to categories III and IV of the ACP PDI, where radiographic mandibular bone height is lower than 15 mm. Patient functional adaptation with CDs seems to be superior to the level of bone resorption for an improved masticatory performance …”

Section: Discussionmentioning

confidence: 99%

The Influence of Age, Gender, Mandibular Bone Height, Previous Experience with Prostheses, and Fabrication Methods on Masticatory Performance of Complete Denture Wearers

Alves

Munhoz

Nascimento

et al. 2018

Journal of Prosthodontics

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“…A single expert examiner (RMMM) performed the radiographic linear measurements to evaluate the mandibular bone height in the anterior and posterior region. The mandibular atrophy level was then determined following the methodology previously described by Marcello‐Machado et al …”

Section: Methodsmentioning

confidence: 99%

Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial

Bielemann

Marcello-Machado

Schuster

et al. 2018

J of Periodontal Research

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Background Biological responses to different loading protocols during the bone healing phase in subjects with long time since edentulism, rehabilitated with narrow diameter implants (NDIs) to retain mandibular overdentures (MOs), are still unavailable. Objective This randomized clinical trial compared the peri‐implant health, implant stability, and concentrations of pro‐ and anti‐inflammatory cytokines in the peri‐implant crevicular fluid (PICF) in mandibular edentulous patients under conventional (CL) and immediate loading (IML) during healing. Methodology Twenty totally edentulous patients received two NDIs (2.9 × 10 mm, Facility NeoPoros) placed in mandible anterior region and were randomly assigned to two loading protocols: CL (n = 10) and IML (n = 10). The following clinical outcomes were evaluated 1, 2, 4, 8, and 12 weeks after surgery: (a) peri‐implant tissue health (gingival index‐GI, plaque index‐PI, calculus‐presence CP, probing depth‐PD, and bleeding on probing‐BOP); (b) implant stability quotient (ISQ); and (c) IL‐1β, IL‐6, IL‐10, and TNF‐α levels in the PICF analyzed by ELISA. Results The CL group showed significantly higher CP scores at weeks 8 and 12. The IML group showed significantly higher GI from the first week onwards. The IML group presented significantly lower PD at all follow‐up times, and higher BOP rates than CL at week 12. The ISQ values of the CL group were higher than those of the IML group, except at week 4. The IML group released significantly more TNF‐α between weeks 1 and 4 and more IL‐1β during week 4‐12, while releasing less IL‐6 until week 8, mainly at week 2 (−47.6%). The release of IL‐10 was similar for both groups and increased progressively over time. At week 12, the IML group released 45.74% more IL‐10 than the CL group. The survival rates were 95% and 90% for CL and IML, respectively. Conclusion The IML group presented more favorable PD at all evaluation times; the differences between the other clinical parameters were less systematic. The implant stability and the inflammatory marker concentrations were more stable in the CL group.

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Masticatory function parameters in patients with varying degree of mandibular bone resorption

Abstract: Mandibular bone height does not directly affect the masticatory function and is inversely correlated with the self-perceived masticatory ability.

Cited by 41 publications

References 22 publications

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study

The Influence of Age, Gender, Mandibular Bone Height, Previous Experience with Prostheses, and Fabrication Methods on Masticatory Performance of Complete Denture Wearers

Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial

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