By correctly repositioning teeth, orthodontic therapy improves both the function and appearance of an occlusion. The relationship between teeth and the tissues that surround and support them significantly influences these alterations. With ever more adults seeking orthodontic care, orthodontists are increasingly seeing patients with periodontal issues. Concerns about the patient’s appearance, such as uneven gingival margins or functional issues caused by inflammatory periodontal diseases, should be accounted for when designing orthodontic treatment plans. Furthermore, orthodontics may increase the chances of saving and recovering a degraded dentition in cases of severe periodontitis. Today, general dentists, dontists, and orthodontists play integrative roles that enable them to achieve the best possible results for their patients. This review will improve the results of interdisciplinary treatments and increase cooperation between dental specialists by drawing attention to the essential connection between orthodontics and periodontics in regular clinical practice.

Orthodontic treatment in patients with no periodontal tissue breakdown vs. horizontal bone loss should be approached with caution even though it can bring significant benefits in terms of periodontal recovery and long-term success. We used the finite element method (FEM) to simulate various clinical scenarios regarding the periodontal involvement: healthy with no horizontal bone loss, moderate periodontal damage (33%) and severe horizontal bone loss (66%). Afterwards, forces of different magnitudes (0.25 N, 1 N, 3 N, and 5 N) were applied in order to observe the behavioral patterns. Through mathematical modeling, we recorded the maximum equivalent stresses (σ ech), the stresses on the direction of force application (σ c) and the displacements produced (f) in the whole tooth–periodontal ligament–alveolar bone complex with various degrees of periodontal damage. The magnitude of lingualization forces in the lower anterior teeth influences primarily the values of equivalent tension, then those of the tensions in the direction in which the force is applied, and lastly those of the displacement of the lower central incisor. However, in the case of the lower lateral incisor, it influences primarily the values of the tensions in the direction in which the force is applied, then those of equivalent tensions, and lastly those of displacement. Anatomical particularities should also be considered since they may contribute to increased periodontal risk in case of lingualization of the LLI compared to that of the LCI, with a potential emergence of the “wedge effect”. To minimize periodontal hazards, the orthodontic force applied on anterior teeth with affected periodontium should not exceed 1 N.

Background and Objectives: Learning to speak properly requires a fully formed brain, good eyesight, and a functioning auditory system. Defective phonation is the outcome of a failure in the development of any of the systems or components involved in speech production. Dentures with strong phonetic skills can be fabricated with the help of a dentist who has a firm grasp of speech production and phonetic characteristics. Every dentist strives to perfect their craft by perfecting the balance between the technical, cosmetic, and acoustic aspects of dentistry, or “phonetics”. The ideal prosthesis for a patient is one that not only sounds good but also functions well mechanically and aesthetically. Words are spoken by using articulators that alter their size and form. Conclusions: Therefore, a prosthesis should be made in such a way that it does not interfere with the ability to communicate. As a result, a prosthodontist has to have a solid grasp of how speech is made and the numerous parts that go into it.

Calcium phosphate-based materials are widely used in dental applications due to their bioactivity and compositional similarity to mineralized tissues. This narrative review synthesizes the peer-reviewed literature published between 2014 and 2024 identified using Scopus, Web of Science, and PubMed, with a specific focus on digitally manufactured calcium phosphate-based dental materials. This review integrates evidence on calcium phosphate phase chemistry and advanced material systems, material configurations compatible with digital workflows and digital manufacturing routes. Emphasis is placed on how fabrication parameters and post-processing—particularly thermal treatment and densification—affect phase composition, microstructure/porosity, mechanical performance, and biological behavior. The current limitations reported in the literature are addressed, including material brittleness, dimensional instability during sintering, heterogeneity of fabrication protocols, and the lack of standardized evaluation methods. The restricted availability of long-term and clinically relevant evidence is also discussed in relation to translational applications. Future research should prioritize well-designed clinical studies to validate the use of digitally manufactured calcium phosphate-based materials in guided bone regeneration, socket preservation, and implant-related procedures.

The present study investigates the dry sliding wear behaviour of pure Zn, Zn–3Mg, and Zn–3Mg–0.5Y biodegradable alloys using mass loss measurements, friction torque monitoring on an Amsler tribometer, and optical profilometry of wear tracks. The microstructure of the Zn–Mg–Y alloy exhibited an α-Zn matrix comprising Zn–Mg intermetallic constituents and dispersed Y-rich phases. Tribological testing at 20 N and 30 N revealed a marked enhancement in wear resistance for Zn–3Mg in comparison to pure Zn, attributable to matrix strengthening by intermetallic phases. Despite the stabilising effect of Y on the friction response, there was no consistent reduction in wear volume under higher loads. Surface investigations have revealed a multifaceted wear mechanism, characterised by a combination of abrasion, oxide tribolayer formation, and localised adhesion. The measured wear rates were found to fall within the range documented in the available literature concerning biodegradable Zn-based alloys, thereby confirming the experimental validity of the findings. In summary, Zn–3Mg exhibited the optimal equilibrium between friction stability and wear resistance under the examined dry sliding conditions. However, further research in physiological environments is necessary to evaluate its biomedical applicability.

Background/Objectives: Eating attitudes may be linked to oral health through behavioral and lifestyle mechanisms, but data on young adults remain limited. The primary objective was to assess the association between dietary attitudes and caries experience in young adults recruited from a private dental practice. Secondary analyses examined the psychometric properties of the EAT-40 and the relationships of its scores with BMI, oral health behaviors, and lifestyle factors. Methods: A cross-sectional study included 366 adults aged 18–25 years recruited by convenience sampling from a private dental practice in Iași. Eating attitudes were assessed using the EAT-40, oral health behaviors using the HU-DBI, and caries experience using the DMFT and DMFS indices. BMI was calculated based on self-reported weight and height. Exploratory factor analysis, Spearman correlations, negative binomial regression, and multiple linear regression were used. Results: The EAT-40 showed good internal consistency (α = 0.887), and the three-factor solution explained 36.6% of the variance. The total EAT-40 score showed weak positive correlations with DMFT and DMFS (ρ = 0.146; p = 0.005 for both), but was not significantly associated with DMFS in the fully adjusted model (IRR = 1.003; 95% CI: 0.997–1.010; p = 0.293) or in the sensitivity analysis (IRR = 1.005; 95% CI: 0.999–1.012; p = 0.122). None of the three EAT-40 dimensions was significantly associated with DMFS after adjustment. The total EAT-40 score was not significantly associated with BMI. Daily smoking was associated with higher DMFS values, whereas occasional smoking was not. Conclusions: In the study sample, EAT-40 scores were weakly associated with caries experience, but not independently with BMI. The results regarding EAT-40 dimensions remain exploratory, and the cross-sectional design does not allow for causal conclusions.