Chewing Efficiency Test in Subjects with Clear Aligners

Levrini, Luca; Bocchieri, Salvatore; Mauceri, Federico; Saran, Stefano; Carganico, Andrea; Zecca, Piero Antonio; Segù, Marzia

doi:10.3390/dj11030068

Cited by 5 publications

(1 citation statement)

References 22 publications

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“…The greatest advantage of clear aligners relies in the possibility of maintaining better oral hygiene, with better periodontal health during orthodontic treatment. A recent publication observed how it is possible to chew with clear aligners, maintaining an efficient masticatory function [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Chewing Function with Efficiency Tests in Subjects Wearing Clear Aligners

Levrini,

Deppieri,

Carganico

et al. 2024

Dentistry Journal

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This study assessed the masticatory function of participants wearing clear aligners in order to determine whether these devices can be worn even when eating and therefore worn to extend treatment time and boost treatment effectiveness. An intercontrol test was conducted on 20 patients who received Invisalign® treatment. Each participant was instructed to chew two pieces of Hue-Check Gum® chewing gum (one pink and the other blue) in 5, 10, and 20 cycles both with and without aligners. After being removed from the oral cavity, the gum was dried and pressed using a 1 × 50 × 50 mm model that was 3D printed with a transparent layer in between. After being scanned on both sides with a flatbed scanner at 600 dpi, the samples were saved as jpg files and subjected to an optoelectronic examination using ViewGum software. To validate the procedure, a control group from a different institution (University of Bern) was used. A statistical analysis of the data was carried out. The Shapiro–Wilk test was used to confirm the normality of the samples. A one-way ANOVA test, a homogeneity of variance test, and a t-test did not reveal statistically significant differences between the two control groups, thus validating the methodology employed. In summary, clear aligners do not radically change the masticatory function while they are worn. As a result, clinicians can exploit the aligners for chewing to obtain a better fit of the plastic material to the dental surface and to attachments. Treatment times for patients could also be shorter.

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Section: Introductionmentioning

confidence: 99%

Chewing Function with Efficiency Tests in Subjects Wearing Clear Aligners

Levrini,

Deppieri,

Carganico

et al. 2024

Dentistry Journal

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Masticatory function between chewing with and without wearing clear thermoplastic appliances

Jirawiwatsaree,

Changsiripun

2024

BMC Oral Health

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Background Clear thermoplastic materials are used in a variety of oral appliances. In some situations, patients may wear clear thermoplastic appliances while eating. However, the effect of wearing clear thermoplastic appliances on chewing efficiency is unknown. This study aimed to evaluate the differences in masticatory function between chewing with and without wearing clear thermoplastic retainers over a 6-month period, and its associated factors. Methods Thirty patients who received upper and lower clear retainers after debonding fixed appliances were examined for objective and subjective masticatory function at retainer delivery (T0), 3-month (T1), and 6-month follow-ups (T2) in two conditions: with and without wearing their retainers while chewing. The objective method used multiple sieves reported as the median particle size (MPS). The food intake ability (FIA) test served as the subjective method. Paired t -test was used to compare the outcomes between chewing with and without retainers at each evaluation time point. Repeated measures ANOVA followed by the Bonferroni post-hoc test was used to compare the outcomes between the three evaluating time points. Multivariable linear regression analysis was performed to assess whether age, sex, and extraction/non-extraction was associated with these effects. Results The MPS was significantly greater when chewing with retainers compared with chewing without them at T0 ( P < 0.05), however, it was not significantly greater at T1 and T2 ( P > 0.05). The MPS with and without the retainers tend to decrease between T0, T1 and T2. In particular, the MPS while chewing with retainers significantly decreased between T0 and T1. The total FIA score and FIA subscores for hard and soft food were significantly lower when eating with retainers at T0 ( P < 0.05), however, all FIA scores when eating without retainers did not significantly change between T0, T1, and T2. No significantly associated factors were identified. Conclusions Wearing clear retainers while chewing decreases objective and subjective masticatory function immediately after completing orthodontic treatment. However, this significantly improved to levels comparable to chewing without retainers after a 3-month follow-up. Age, sex, and extraction/non-extraction treatment were not associated with the difference in masticatory function while chewing with and without wearing the retainers.

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An evaluation of the Invisalign® Aligner Technique and consideration of the force system: a systematic review

Caruso,

De Felice,

Valenti

et al. 2024

Syst Rev

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Objective Since its introduction 25 years ago, the Invisalign® system has undergone multiple digital and biomechanical evolutions and its effectiveness is often compared to traditional systems without considering the many differences which characterize them. The main aim of this systematic review is to look at the literature dealing with studies on teeth movements using the Invisalign® system and the management of these movements through digital planning and artificial intelligence. Materials and methods The following electronic databases were searched: MEDLINE, Embase, the Cochrane Oral Health Group’s Trials Register, and CENTRAL. Unpublished studies were searched on ClinicalTrials.gov, the National Research Register, and Pro-Quest Dissertation Abstracts and Thesis database. Results Twenty-four studies (15 retrospective, 5 prospective, 2 pilot, and 2 case–control) were included. The results of the analysis carried out on the available literature show that the Invisalign® system is recognized to be a valid alternative to conventional orthodontic treatment in no-extraction cases. The results are influenced by the methods for assessing the effectiveness of this technique and by the comparison bias of the traditional system with the innovative digital system. Conclusions Since the introduction of SmartForce and SmartTrack material, the efficacy of the treatment has improved. There is still a shortage of high-quality evidence concerning the treatment modality. In order to make the treatment with the aligners more efficient, a correct management of the ClinCheck® software and a proper use of the biomechanics are necessary. The aligned force-driven system should be taken into account when developing the digital planning.

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Chewing Efficiency Test in Subjects with Clear Aligners

Cited by 5 publications

References 22 publications

Chewing Function with Efficiency Tests in Subjects Wearing Clear Aligners

Chewing Function with Efficiency Tests in Subjects Wearing Clear Aligners

Masticatory function between chewing with and without wearing clear thermoplastic appliances

An evaluation of the Invisalign® Aligner Technique and consideration of the force system: a systematic review

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