The Association Between a Mixing Ability Test and Patient Reported Chewing Ability in Patients Treated for Oral Malignancies

Overview

Journal J Oral Rehabil

Specialty Dentistry

Date 2018 Oct 13

PMID 30311256

Citations 5

Authors

Reilly J de Groot

Antoine J W P Rosenberg

Andries van der Bilt

Daniel Aalto

Matthias A W Merkx

Caroline M Speksnijder

Affiliations

Soon will be listed here.

Abstract

Introduction: Mastication has been assessed in several ways in the past. Both patients reported and objective assessment methods have been developed. The University Medical Center (UMC) Utrecht has developed a mixing ability test (MAT) using a two-coloured wax tablet. The present study investigates the association between the mixing ability test and a chewing related questionnaire in patients treated for oral malignancies.

Patients And Methods: In a cohort study, patients treated for oral malignancies were assessed 4-6 weeks before and 4-6 weeks after treatment, as well as 6 months, 1 year and 5 years after treatment. The mixing ability test was assessed using 10 and 20 chewing strokes and was compared to seven questions about several aspects of mastication. Regression analysis was performed and density plots were drawn for statistical analysis.

Results: One hundred and twenty-three patients were included in this study. The questionnaire was less predictive for the 10-chewing stroke test and the test was less discriminatory for different food types than the 20-chewing stroke mixing ability test. Three questions about the ability to chew solid, soft and thickened liquid food types were found to be significantly predictive for the 20-chewing stroke test. Threshold values on the mixing ability index were around 20 for the ability to chew solid food types and 24 for soft food types.

Conclusion: The 10-chewing stroke mixing ability test is less suitable than 20-chewing strokes for patients with and treated for oral cancer. The 20-chewing stroke mixing ability test has a fair association with self-reported outcomes.

Citing Articles

Factors associated with masticatory function as measured with the Mixing Ability Test in patients with head and neck cancer before and after treatment: a prospective cohort study.

Vermaire J, Raaijmakers C, Monninkhof E, Verdonck-de Leeuw I, Terhaard C, Speksnijder C Support Care Cancer. 2022; 30(5):4429-4436.

PMID: 35106658 PMC: 8942951. DOI: 10.1007/s00520-022-06867-0.

Mastication in maxillectomy patients: A comparison between reconstructed maxillae and implant supported obturators: A cross-sectional study.

Buurman D, Speksnijder C, de Groot R, Kessler P, Rieger J J Oral Rehabil. 2020; 47(9):1171-1177.

PMID: 32613633 PMC: 7497273. DOI: 10.1111/joor.13043.

Reliability of the mixing ability test testing masticatory performance in patients with head and neck cancer and healthy controls.

Vermaire J, Weinberg F, Raaijmakers C, Verdonck-de Leeuw I, Terhaard C, Speksnijder C J Oral Rehabil. 2020; 47(8):961-966.

PMID: 32495364 PMC: 7497093. DOI: 10.1111/joor.13029.

Tongue function and its influence on masticatory performance in patients treated for oral cancer: a five-year prospective study.

de Groot R, Merkx M, Hamann M, Brand H, de Haan A, Rosenberg A Support Care Cancer. 2019; 28(3):1491-1501.

PMID: 31273502 PMC: 6989568. DOI: 10.1007/s00520-019-04913-y.

The association between a mixing ability test and patient reported chewing ability in patients treated for oral malignancies.

de Groot R, Rosenberg A, van der Bilt A, Aalto D, Merkx M, Speksnijder C J Oral Rehabil. 2018; 46(2):140-150.

PMID: 30311256 PMC: 7379969. DOI: 10.1111/joor.12734.

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