Quantitative Evaluation of Masticatory Performance with Two-Color Mixing Ability Test: Development of a New Digital Method

Yousof, Yaman; Salleh, Nosizana Mohd; Yusof, Farazila

doi:10.11607/ijp.6568

Cited by 8 publications

(8 citation statements)

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“…These particles may be natural test foods, or artificial materials such as condensation silicone (Optosil), modified gelatin, and chewing gum 2 . Measurement of masticatory efficiency using digital assessment of two‐color chewing gum has been used extensively in the last decade 25–28 . The hues of two different colors of the gum are quantified using software to improve the reproducibility of the results 29 …”

Section: Introductionmentioning

confidence: 99%

Within‐patient evaluation of chewing efficiency and maximum bite force of conventional dentures, fixed prostheses, and milled bar overdentures used for All‐on‐4 implant rehabilitation of atrophied mandibular ridges: A short‐term randomized trial

ELsyad

Tella

Mohamed

et al. 2022

Clin Implant Dent Rel Res

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Purpose: This crossover study aimed to evaluate chewing efficiency and maximum bite force (BF) of conventional dentures, fixed prostheses, and milled bar overdentures (MO) used for All-on-4 implant rehabilitation of atrophied mandibular ridges.Methods: Sixteen edentulous participants with resorbed mandibular ridges received new conventional dentures (CD, control). Four implants were inserted after 3 months in the mandible using the All-on-4 protocol and loaded immediately with acrylic prosthesis. In a crossover manner, each patient had either fixed restoration (FR, 12 occlusal units) or MO (14 occlusal units) randomly in a crossover study design. Chewing efficiency was evaluated using the mixing ability test. The hue deviation (HD) of twocolored gum was calculated after being chewed for 5, 10, 20, 30, and 50 masticatory cycles. Maximum BF was evaluated using a BF device. HD and BF were measured after using CD, FR, and MO prostheses.Results: For all groups, the highest HD (i.e., the lowest chewing efficiency) was noted with 5 strokes, followed by 10, 20, 30 strokes, and the lowest HD (i.e., the highest chewing efficiency) was noted with 50 strokes. For all number of chewing strokes, CD showed the highest HD, then FR, and MO recorded the lowest HD. The highest BF was observed with MO, then FR, and the lowest BF was noted with CD. Conclusion:Within the limitations of this short-term investigation, both FR and MO used for All-on-4 implant rehabilitation of patients with resorbed mandibular ridges improve masticatory efficiency and maximum BFs compared to CD. However, MO was associated with significantly higher chewing efficiency and maximum BFs than fixed prosthesis.

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Section: Introductionmentioning

confidence: 99%

Within‐patient evaluation of chewing efficiency and maximum bite force of conventional dentures, fixed prostheses, and milled bar overdentures used for All‐on‐4 implant rehabilitation of atrophied mandibular ridges: A short‐term randomized trial

ELsyad

Tella

Mohamed

et al. 2022

Clin Implant Dent Rel Res

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“…They were fully dentate, in angle class I, with a DMFT < 4, and with no TMJ disorders. The choice of a sample with these characteristics was considered crucial for the validation of the proposed software [10,12,16,18,25,26].…”

Section: Discussionmentioning

confidence: 99%

“…Even though the method proposed by Schimmel et al is considered to be the gold standard among mixing ability tests, the digital analysis of boluses derived from its application is still controversial. Different software packages were proposed in order to analyze the specimens, highlighting the great variability of those methods and the need to find the best possible one to use both in clinical and research settings [12,[14][15][16][17][18]. Unfortunately, the software may introduce errors due to the manual resizing and segmentation of bolus images and the difficulty in distinguishing hue variations between the gum and the background, especially for well-mixed chewing gum.…”

Section: Introductionmentioning

confidence: 99%

A Novel Color-Based Segmentation Method for the Objective Measurement of Human Masticatory Performance

Aquilanti¹,

Scalise

Mascitti³

et al. 2020

Applied Sciences

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The aims of this study were to propose an automatic color-based segmentation method to separate mixed and unmixed colors of images that were derived from the application of the two-color chewing-gum mixing test and to determine the validity of this method in the assessment of masticatory performance (MP). Fifty young adults (mean age: 24.3 ± 2.7 years) were enrolled in the study. Each participant chewed a double-colored chewing gum for 5, 10, 20, 30, and 50 masticatory cycles. Boluses were collected and flattened. Both sides of each bolus were photographed, and images were processed using a novel k-means clustering method. The specimens corresponding to 20 masticatory cycles were re-analyzed by the same investigator in order to evaluate the intra-rater reliability and by a second investigator to assess the inter-rater reliability. To assess the test–retest reliability, 25% of the participants performed a second test with 20 chewing cycles. Each bolus was subjectively scored as either poorly, moderately, or highly mixed by an investigator to assess the construct validity. The percentage of mixed colors in the samples increased with an increase in the number of strokes. Significative differences were detected when varying from 5 to 10 strokes, from 10 to 20 strokes, and from 30 to 50 strokes (p < 0.05). The Pearson correlation coefficient explained these relations (r = 0.78, p < 0.05). The interclass correlation coefficient (ICC) showed a good correlation concerning both the intra- and inter-rater reliability (r = 0.85 and r = 0.77, respectively) and an excellent test–retest correlation (r = 0.93). The subjective assessment was coherent with the digital one. The proposed digital method was proved to be able to automatically quantify the percentage of the mixed color area by providing quantitative data with minimal human interaction.

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“…Із застосуванням новітніх технічних досягнень у медичній сфері з'явились методи, засновані на аналізі оклюзіограм, оброблюваних певним чином у комп'ютерних програмах -графічних редакторах, таких як Adobe Photoshop та ін. [6]. Як правило, ці методи також трудомісткі й не завжди призводять до точного результату, оскільки не існує вираженої відповідності між площею оклюзійних контактів, яку вони оцінюють, і величиною жувальної ефективності, а також вони не враховують функцію жувальних м'язів.…”

Section: вступunclassified

“…Мета дослідження -удосконалення визначення жувальної ефективності у хворих з онкопатологією порожнини рота до й після оперативного лікування. Для дослідження жувальної ефективності було вибрано жувальну пробу за допомогою жувальних гумок «Orophys Hue-chek gum» (Швейцарія) [6,7]. Проба має особливості, що відрізняє її від інших методик і забезпечує універсальність, менші часові витрати на проведення, а також передбачає простоту дослідження й високу індивідуалізацію для кожного досліджуваного.…”

Section: вступunclassified

Features of determination of masticatory efficiency at patients with postoperative defects of an oral cavity

Kushta¹

2021

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Resume. The aim of the study was to improve the determination of masticatory efficiency in patients with oncopathology of the oral cavity before and after surgery. For this purpose, the analysis of masticatory efficiency in dynamics was performed using a two-color chewing gum in 29 patients with tumors of the tongue, oral mucosa and lower jaw. After surgery, masticatory parameters decreased compared to the weekend and did not recover for 7 days after surgery. In patients diagnosed with stage I-III mandibular cancer, masticatory values are below 0.5 (0.34±0.04; 0.28±0.03; 0.24±0.03), indicating poor bolus formation. This method is informative for the formation of the bolus, taking into account not only the presence of teeth, but also the function of the muscles involved in chewing. Key words: masticatory efficiency, defects of the oral cavity, tumors of the tongue, the bottom of the oral cavity, the jaw.

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Quantitative Evaluation of Masticatory Performance with Two-Color Mixing Ability Test: Development of a New Digital Method

Cited by 8 publications

References 0 publications

Within‐patient evaluation of chewing efficiency and maximum bite force of conventional dentures, fixed prostheses, and milled bar overdentures used for All‐on‐4 implant rehabilitation of atrophied mandibular ridges: A short‐term randomized trial

Within‐patient evaluation of chewing efficiency and maximum bite force of conventional dentures, fixed prostheses, and milled bar overdentures used for All‐on‐4 implant rehabilitation of atrophied mandibular ridges: A short‐term randomized trial

A Novel Color-Based Segmentation Method for the Objective Measurement of Human Masticatory Performance

Features of determination of masticatory efficiency at patients with postoperative defects of an oral cavity

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