Perception of discrepancy in the upper midline position in conjunction with the gingival display according to various occupations in Iran.

Objective: This study evaluated the influence of various gingival displays on the esthetic perception in the presence of upper dental midline discrepancy.

Methods: A smiling image of a male subject was altered digitally to produce five image series: normal smile (series A), decreased tooth show (series B), increased gingival show (series C), maxillary cant (series D), and asymmetric upper lip elevation (series E). In each image series, the midline was deviated to the right and left incrementally.

Effectiveness of Photobiomodulation on Orthodontic Mini Screw Stability: A Systematic Review.

Photobiomodulation therapy (PBMT) enhances bone regeneration and bone healing and has been suggested to improve the stability of orthodontic mini screws. This study aimed to systematically review the clinical influence of PBMT on orthodontic mini screw stability. A comprehensive search was run in the following electronic databases: PubMed, EMBASE, Web of Science, Scopus, and Cochrane.

Er,Cr:YSGG Laser as a Means of Orthodontic Adhesive Removal: Myth or Reality?

This study aimed to compare the effect of Er,Cr:YSGG laser with a tungsten carbide bur in orthodontic finishing on the enamel surface roughness and the heat generated in the pulp chamber. Before bonding, of 125 intact extracted premolar teeth, 15 teeth were randomly assigned to the control group. Of the remaining 110 bonded teeth, 50 were used to determine the laser parameters, and 60 were included in the main study.

Are individuals with orofacial pain more prone to psychological distress during the COVID-19 pandemic?

Background: It is of utmost importance to identify and treat groups susceptible to psychological problems during the coronavirus disease 2019 (COVID-19) pandemic.

Objectives: This study aimed to compare the psychological status between the general population and subjects with orofacial pain (OFP) during the COVID-19 pandemic.

Material And Methods: A total of 509 young adults were recruited based on the inclusion and exclusion criteria, using the convenient sampling approach.

Changes of nasolabial angle from rest to smile in relation to cephalometric parameters.

Introduction: The nasolabial angle (NLA) plays an important role in evaluating a patient's profile and smile appearance. The purpose of this study was to evaluate the changes of the NLA during smile and to correlate those changes with other photographic and cephalometric parameters.

Methods: Fifty young adults ranging from 20 to 30 years of age who had been referred to a private dental clinic for orthodontic treatment for normal maxillary position were enrolled.

Assessment of the changes in alveolar bone quality after fixed orthodontic therapy: A trabecular structure analysis.

Tooth displacement changes the periodontium. The aim of orthodontic treatment is desired tooth movement with minimum side effects on the alveolar bone quality. The aim of the present study was to assess changes of alveolar trabeculation in children, young adults and adults and the two genders.

Susceptibility of Candida albicans and Candida dubliniensis to Photodynamic Therapy Using Four Dyes as the Photosensitizer.

Statement Of The Problem: Oral candidiasis is the most common opportunistic infection affecting the human oral cavity. Photodynamic therapy, as one of its proposed treatment modalities, needs a distinct dye for achieving the best effect.

Purpose: The purpose of this study was to evaluate photosensitization effects of four distinct dyes on standard suspension of () and () and biofilm of C.

The impact of an educational pamphlet on the awareness of parents about 4‒6-year-old children's oral habits and dentofacial discrepancies.

Background. This study aimed to evaluate whether the parents' knowledge about the adverse effects of oral habits and dentoskeletal discrepancies would improve by an educational pamphlet. Methods.

The Effects of Denture Cleansing Solutions on the Retention of Attachments of Implant Supported Overdentures.

Statement Of The Problem: Implant-retained overdenture can improve the stability of dentures and prevent bone loss. Overdenture-wearing patients need special hygiene care.

Purpose: The aim of this study was to evaluate the effects of various denture cleansers on the retention of Dio orange O-rings.

Intraventricular hemorrhage in premature infants and its association with pneumothorax.

Intraventricular hemorrhage (IVH) is one of the major causes of the cerebral palsy and mental retardation. Prevention and early management of these neurologic developmental problems will require determining the perinatal risk factors associated with this clinical entity. Pneumothorax increase the risk of IVH, and cause of pneumothorax has an important effect in severity of IVH.