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Bioengineering (Basel). 2024 Aug 5;11(8):789. doi: 10.3390/bioengineering11080789.

ABSTRACT

The aim was to objectively assess compliance in patients prescribed headgear and evaluate the impact of monitoring awareness, treatment duration, gender, and age on compliance levels. A total of 22 patients with Class II malocclusion wore the headgear integrated with the force and temperature sensitive Smartgear monitoring system (Smartgear, Swissorthodontics AG, Cham, Switzerland). Patients were instructed to wear the headgear for 13 h daily over a 3-month period. Randomly, 11 patients were informed that they monitored and 11 were not informed. Data were organized using Microsoft Excel and analyzed using R for statistical estimates, graphs, and hypothesis testing. Smartgear recorded an average daily compliance of 6.7 h. No statistically significant differences were found in cooperation between study group and control group over the 3 months of treatment, regardless of gender and age. However, there was slight greater cooperation in the first month than in the other months, and patients ≤10 years of age had almost 2 h more cooperation than their older counterparts. Moreover, the informed group exhibited an average of 1.1 more hours of cooperation per day than the uninformed group, which may carry clinical significance. This cooperation primarily occurred at night and was found to be statistically significant. Compliance among young patients typically remained lower than the prescribed level, regardless of their gender and psychological maturity. Although an awareness of monitoring does not seem to improve compliance, implementing such systems could still offer dentists a valuable means of obtaining objective information about their patients’ adherence.

PMID:39199747 | DOI:10.3390/bioengineering11080789

J Clin Orthod. 2024 Jul;58(7):418-426.

NO ABSTRACT

PMID:39191518

J Clin Orthod. 2024 Jul;58(7):439-440.

NO ABSTRACT

PMID:39191520

Korean J Orthod. 2024 Jul 25. doi: 10.4041/kjod23.270. Online ahead of print.

ABSTRACT

OBJECTIVE: This study aims to employ finite element method (FEM) analysis to compare the differences between bicortical and tricortical anchorage of the posterior miniscrews in a single-screw miniscrew-assisted rapid palatal expansion (MARPE) and a double-screw tandem skeletal expander (TSE) under open and closed suture conditions.

METHODS: A cone beam computed tomography of the human skull of a 21.5-year-old female was utilized as a model for creating a FEM analysis. Simulations involved the insertion of four palatal miniscrews: two anterior ones with bicortical anchorage and two posterior ones (one with bicortical and another with tricortical anchorage), under open and closed suture conditions in a single-screw MARPE and double-screw TSE, resulting in a total of eight different simulation configurations. Evaluation parameters include total deformation (mm), Von Mises stress (MPa), and strain for each miniscrew body.

RESULTS: Tricortical anchorage of the posterior miniscrews provides greater anchorage, higher stress, and deformation on the anterior miniscrews in single-screw MARPE. Tricortical anchorage combined with a double-screw TSE promotes a more even distribution of force and stress on miniscrews under open suture conditions, leading to a parallel midpalatal suture opening along its entire length and height.

CONCLUSIONS: FEM analysis revealed favorable midpalatal suture opening with equal force distribution and less stress when posterior tricortical anchorage in conjunction with double-screw TSE is applied.

PMID:39049467 | DOI:10.4041/kjod23.270

J Oral Rehabil. 2024 Jul 18. doi: 10.1111/joor.13810. Online ahead of print.

ABSTRACT

BACKGROUND: The demand for orthodontic treatment with aligners has recently increased, but their effects on awake bruxism (AB) behaviours have to be evaluated yet.

OBJECTIVES: This investigation assessed if aligners can affect oral behaviours (i.e. tooth contact, teeth clenching, teeth grinding and mandible bracing) that are related with the AB spectrum.

METHODS: The investigation was performed in a sample of 32 consecutively recruited healthy adult patients who required orthodontic treatment. The study protocol involved three different sessions of 1-week monitoring without aligners, with passive aligners and with active aligners, respectively. All patients underwent an orthodontic treatment with aligners and used a smartphone-based application for a real-time report (i.e. ecological momentary assessment [EMA]) of their AB behaviours. Recording time was set from 8.00 to 12.30 and from 14.30 to 22.00. Analysis of variance (ANOVA) was used to compare the average reported frequency for each activity within and between the different sessions. The coefficient of variation (CV) was assessed to evaluate daily fluctuations within the 7 days monitoring periods.

RESULTS: The average reported frequency of the relaxed condition was 64.9%, 63.0% and 60.0% during the sessions without aligners, with passive aligners and with active aligners, respectively. ANOVA showed no significant differences in any of the AB behaviours within (i.e. between 7 days of evaluation) and between the monitoring sessions (i.e. before orthodontic treatment, with passive aligners, with active aligners). No sex differences were detected, except for the ‘tooth contact’ report that showed a higher frequency in females.

CONCLUSION: The impact of our results in the orthodontic field is not negligible; clinicians can find support for the hypothesis that from a global point of view, wearing or not wearing aligners (passive and/or active) does not influence the frequency of AB behaviours at the short term.

PMID:39030849 | DOI:10.1111/joor.13810

J Clin Orthod. 2024 May;58(5):293-303.

NO ABSTRACT

PMID:38917041

Eur Heart J Suppl. 2024 Apr 17;26(Suppl 1):i39-i43. doi: 10.1093/eurheartjsupp/suae015. eCollection 2024 Apr.

ABSTRACT

Multivessel coronary artery disease (MVD) is a frequently encountered condition in patients with ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI) of the culprit vessel. Several studies have demonstrated the benefit of complete coronary revascularization compared with the treatment of the culprit lesion only in patients with STEMI. Based on this evidence, the current European guidelines recommend that in haemodynamically stable patients with STEMI and MVD, routine complete revascularization should be achieved either during the same procedure in concomitance with the treatment of the culprit lesion (immediate multivessel PCI) or with a subsequent intervention within 45 days from the index PCI of the culprit lesion (deferred multivessel PCI). However, the guidelines do not express a preference for immediate vs. delayed multivessel PCI. Therefore, the optimal timing of the treatment of non-culprit lesions in patients with STEMI and haemodynamic stability is still debated and has been evaluated in recent studies that showed the non-inferiority of immediate vs. delayed multivessel PCI. The article discusses the results and clinical implications of these studies on the timing of complete revascularization of non-culprit lesions in haemodynamically stable patients with STEMI.

PMID:38867855 | PMC:PMC11167991 | DOI:10.1093/eurheartjsupp/suae015

Am J Orthod Dentofacial Orthop. 2024 May 18:S0889-5406(24)00149-5. doi: 10.1016/j.ajodo.2024.04.011. Online ahead of print.

ABSTRACT

INTRODUCTION: The objective of this study was to identify the soft-tissue profile changes and the potential pretreatment cephalometric parameters that clinicians could use to predict the lip response after premolar extraction treatment in adult patients.

METHODS: Pretreatment and posttreatment lateral cephalograms of 75 white patients treated with premolar extractions were analyzed. The following initial cephalometric measurements were recorded: upper and lower lip to E-plane, vermilion thickness, lip length, maxillary and mandibular incisor inclination, and mentolabial and nasolabial angle. Pretreatment and posttreatment radiographs were superimposed using the Björk structural method to record lip retraction and incisor/lip retraction ratio. Pearson correlation and Kruskal-Wallis tests were used to compare lip retraction and incisor/lip retraction ratio with the cephalometric variables. The sample was divided according to different extraction patterns.

RESULTS: The mean upper and lower lip retraction values were 1.4 mm and 1.7 mm, respectively. Vermilion thickness showed a negative and statistically significant correlation (P <0.05) with lip retraction and incisor/lip retraction ratio. In addition, the mean incisor/lip retraction ratio was 61% and 98% for the upper and lower thin lip, respectively, whereas the mean incisor/lip retraction ratio was 17% and 44% for the upper and lower thick lip, respectively. The comparison among extraction patterns did not highlight any noticeable difference.

CONCLUSIONS: The choice of a specific extraction pattern did not impact lip response. The vermilion thickness was the key factor influencing lip retraction: an increase in this parameter was related to a decrease in lip retraction and vice versa.

PMID:38762811 | DOI:10.1016/j.ajodo.2024.04.011

J Clin Orthod. 2024 Mar;58(3):169-180.

NO ABSTRACT

PMID:38754378

J Clin Orthod. 2024 Mar;58(3):196-200.

NO ABSTRACT

PMID:38754382