Comparison of the effects of total arch intrusion treatment in adolescents and adults: A pilot study.

Introduction: This study aimed to examine the effectiveness of total arch intrusion (TAI) treatment in patients with skeletal Class II malocclusion with retruded mandible and compare the treatment changes between adolescents and adults.

Methods: We retrospectively analyzed cephalometric radiographs of 30 patients who underwent TAI using miniscrews. Growing adolescent patients were classified as group 1 (G1), whereas nongrowing patients were classified as group 2 (G2).

Differences in morphologies of the articular eminence and glenoid fossa according to disk displacement and sex.

Objective: This study aimed to assess the differences in the morphologies of the articular eminence and glenoid fossa according to disk displacement status and sex using magnetic resonance imaging (MRI) and computed tomography (CT).

Study Design: Based on MRI, the disk position was classified into normal disk position (NR), disk displacement with reduction (DDR), and disk displacement without reduction (DDNR). After evaluation of the morphologies of the articular eminence and glenoid fossa on the CT scans, differences in the morphologies of the articular eminence and glenoid fossa with respect to disk displacement and sex were analyzed.

Bone mineral density and anatomic limitations of miniscrew placement at buccal interradicular sites: A quantitative computed tomography study.

Introduction: This study aimed to evaluate the bone mineral density (BMD) and anatomic limitations of miniscrew placement at buccal interradicular sites.

Methods: Virtual miniscrews were placed at the interradicular sites from the canines to the second molars of 139 patients who underwent quantitative computed tomography. Mixed-effects modeling and logistic regression were used to test the differences in BMD and the odds of root proximity, sinus invasion, and bicortical perforation according to sex, growth status, and interradicular site.

Comparison of safety of general anesthesia and intravenous sedation during third-molar extraction surgery.

This study compared the safety of general anesthesia (GA) and intravenous sedation (IVS) in patients who underwent extraction of one or more third molars. Data from 1260 patients (GA group, n = 1043; IVS group, n = 217) were retrospectively analyzed, including demographics, preoperative data, intraoperative hemodynamic parameters (blood pressure, heart rate, and oxygen saturation level), and medications administered intraoperatively and postoperatively. The incidence of intraoperative circulatory variations, surgery and anesthesia durations, postoperative complications, and medication use were assessed and compared.

Managing oral biofilms to avoid enamel demineralization during fixed orthodontic treatment.

Enamel demineralization represents the most prevalent complication arising from fixed orthodontic treatment. Its main etiology is the development of cariogenic biofilms formed around orthodontic appliances. Ordinarily, oral biofilms exist in a dynamic equilibrium with the host's defense mechanisms.

Runx2 heterozygosity alters homeostasis of the periodontal complex.

Background And Objective: Haploinsufficiency of Runx2 (Runx2 ) causes dental anomalies. However, little is known about the involvement of Runx2 in the maintenance of dentin, cementum, and the periodontal ligament (PDL) during adulthood. This study aimed to observe the effects of Runx2 on homeostasis of the periodontal complex.

Classification of Skeletal Phenotypes of Preadolescent Patients With Isolated Cleft Palate Using Principal Component Analysis and Cluster Analysis.

This study aimed to classify the skeletal phenotypes of preadolescent patients with isolated cleft palate using principal component analysis and cluster analysis. Sixty-four preadolescent female patients with isolated cleft palate (incomplete hard palate and complete soft palate cleft group, n=51; complete cleft of the hard and soft palate group, n=13; the mean age when lateral cephalograms were taken, 7.08±0.

Effect of a multichannel oral irrigator on periodontal health and the oral microbiome.

Oral biofilms or dental plaques are one of the major etiological factors for diverse oral diseases. We aimed to evaluate the effect of a multichannel oral irrigator (MCOI) on periodontal health in 29 participants randomly divided into two groups: the MCOI group and the control group. To evaluate the effect of the MCOI on periodontal health, the modified Quigley Hein Plaque Index (PI), Mühlemann-Son Sulcus Bleeding Index (SBI), bleeding on probing (BOP), and swelling were evaluated and compared before and after MCOI use for 3 days.

Differences in dentoskeletal and soft tissue changes due to rapid maxillary expansion using a tooth-borne expander between adolescents and adults: A retrospective observational study.

Objective: The purpose of this study was to compare the differences in dentoskeletal and soft tissue changes following conventional tooth-borne rapid maxillary expansion (RME) between adolescents and adults.

Methods: Dentoskeletal and soft tissue variables of 17 adolescents and 17 adults were analyzed on posteroanterior and lateral cephalograms and frontal photographs at pretreatment (T1) and after conventional RME using tooth-borne expanders (T2). Changes in variables within each group between T1 and T2 were analyzed using Wilcoxon signed-rank test.

Poorer sleep quality in patients with chronic temporomandibular disorders compared to healthy controls.

Objectives: This study aimed to investigate and compare sleep quality between patients with chronic temporomandibular disorder and healthy controls, and to analyze the association of sleep quality with disease characteristics, obstructive sleep apnea risk factors, and excessive daytime sleepiness.

Methods: Chronic temporomandibular disorder patients (n = 503, mean age: 33.10 ± 13.

Comparison of dentoskeletal and soft tissue changes between tooth-borne and tooth-bone-borne hybrid nonsurgical rapid maxillary expansions in adults: a retrospective observational study.

Background: Despite the gradual increase in the use of rapid maxillary expansion (RME), specifically RME with the aid of skeletal anchorage in adults, there have been no reports comparing dentoskeletal and soft tissue changes between nonsurgical tooth-borne and tooth-bone-borne RMEs in adults. This study aimed to analyse differences in dentoskeletal and soft tissue changes between tooth-borne and tooth-bone-borne RMEs using a similar appliance design and the same expansion protocol in adult patients.

Methods: Twenty-one patients with tooth-borne expansion (a conventional expansion screw with two premolars and two molar bands for dental anchorage [T-RME]) and the same number of patients with tooth-bone-borne hybrid expansion (a conventional expansion screw with two premolar and two molar bands for dental anchorage and four mini-implants in the palate for skeletal anchorage [H-RME]) were included.

Association between Condylar Bone Density and Disk Displacement in the Temporomandibular Joint.

Measuring bone density (BD) is a common method of determining bone quality; however, the relationship between condylar BD and the occurrence of temporomandibular joint (TMJ) disorders has not been investigated. To address this knowledge gap, we aimed to investigate condylar BD in terms of TMJ disk displacement (TMJ DD) using computed tomography (CT) and magnetic resonance imaging (MRI). We classified TMJ MRI results according to the position of the disk: normal disk position (Normal), anterior disk displacement with reduction (ADDR), and anterior disk displacement without reduction (ADDNR).

Effects of Presurgical Mandibular Incisor Decompensation on Long-Term Outcomes of Class III Surgical Orthodontic Treatment.

This research aimed to evaluate the effects of presurgical mandibular incisor decompensation on long-term outcomes of Class III surgical orthodontic treatment. Thirty-five patients with skeletal Class III malocclusion who received conventional surgical orthodontic treatment were included. Mandibular incisor brackets with -6° of inclination were placed normally in 18 patients (NB group) and inversely in 17 patients (RB group).

Relationship of computed tomography-verified degenerative condylar morphology with temporomandibular joint disk displacement and sex.

Objective: This study investigated the association of computed tomography (CT)-verified degenerative condylar changes with disk displacement (DD) and sex.

Study Design: Multidetector CT and cone beam CT scans of 165 condyles were evaluated for erosion, osteophyte formation, flattening, subcortical sclerosis, generalized sclerosis, subcortical defects, and loose joint bodies. Disk position was determined using magnetic resonance imaging.

Relationship between rotational disc displacement of the temporomandibular joint and the dentoskeletal morphology.

Objective: The purpose of this study was to evaluate the relationship between rotational disk displacement (DD) of the temporomandibular joint (TMJ) and the dentoskeletal morphology.

Methods: Women aged > 17 years were included in this study. Each subject had a primary complaint of malocclusion and underwent routine cephalometric examinations.

Predictors of Red Blood Cell Transfusion in Bimaxillary Orthognathic Surgery: A Retrospective Study.

Orthognathic surgery requires red blood cell (RBC) transfusions more frequently than other oral and maxillofacial surgeries. The purpose of this study was to identify reliable predictors for RBC transfusion during bimaxillary orthognathic surgery (BOS). This retrospective study reviewed 1,616 electronic medical records of patients who underwent BOS during a 5-year period at Seoul National University Dental Hospital.

Age-related radiomorphometric changes on panoramic radiographs.

Objectives: We aimed to analyse age-related anatomical changes in teeth and mandibular structures using panoramic radiographs.

Materials And Methods: We included 471 subjects aged 13-70 years (mean, 35.12 ± 18.

Diagnostic Models for Screening of Periodontitis with Inflammatory Mediators and Microbial Profiles in Saliva.

This study aims to investigate and assess salivary biomarkers and microbial profiles as a means of diagnosing periodontitis. A total of 121 subjects were included: 28 periodontally healthy subjects, 24 with Stage I periodontitis, 24 with Stage II, 23 with Stage III, and 22 with Stage IV. Salivary proteins (including active matrix metalloproteinase-8 (MMP-8), pro-MMP-8, total MMP-8, C-reactive protein, secretory immunoglobulin A) and planktonic bacteria (including , , , , , , , , , , , , , , and ) were measured from salivary samples.

Orthodontic bonding procedures significantly influence biofilm composition.

Background: Because changes in surface properties affect bacterial adhesion, orthodontic bonding procedures may significantly influence biofilm formation and composition around orthodontic appliances. However, most studies used a mono-species biofilm model under static conditions, which does not simulate the intraoral environment and complex interactions of oral microflora because the oral cavity is a diverse and changeable environment. In this study, a multi-species biofilm model was used under dynamic culture conditions to assess the effects of the orthodontic bonding procedure on biofilm formation and compositional changes in two main oral pathogens, Streptococcus mutans and Porphyromonas gingivalis.

Comparison of implant stability measurements between a resonance frequency analysis device and a modified damping capacity analysis device: an study.

Purpose: A stability-measuring device that utilizes damping capacity analysis (DCA) has recently been introduced in the field of dental implantology. This study aimed to evaluate the sensitivity and reliability of this device by measuring the implant stability of samples in comparison with a resonance frequency analysis (RFA) device.

Methods: Six implant beds were prepared in porcine ribs using 3 different drilling protocols to simulate various implant stability conditions.

Microbial changes in biofilms on composite resins with different surface roughness: An in vitro study with a multispecies biofilm model.

Statement Of Problem: The single-species biofilm method cannot represent the interaction and complex functions of microorganisms associated with oral biofilms.

Purpose: The purpose of this in vitro study was to investigate microbial changes in biofilms on composite resins of varying surface roughness by using a multispecies biofilm model with early-colonizing streptococci, middle colonizer, and late-colonizing gram-negative anaerobes.

Material And Methods: Composite resin disks were prepared with different roughness: SR180, SR400, SR1500, and SRGlass roughened with 180-, 400-, and 1500-grit silicon carbide paper and glass (control surface without surface roughening).

Sex differences in the hypothalamic-pituitary-adrenal axis in patients with burning mouth syndrome.

Objective: To investigate the sex differences in clinical features, including salivary flow rate, psychological distress and hypothalamic-pituitary-adrenal axis response and their inter-relationships in patients with burning mouth syndrome.

Subjects And Methods: Eighteen men and 37 postmenopausal women with burning mouth syndrome underwent a comprehensive questionnaire evaluation, psychological evaluation and salivary flow rate measurement. Laboratory tests were performed to investigate the function and integrity of the hypothalamic-pituitary-adrenal axis.

Changes in condylar dimensions in temporomandibular joints with disk displacement.

Objectives: The aim of this study was to investigate the condylar dimensions of the temporomandibular joint (TMJ) with respect to disk displacements and sex by using computed tomography (CT) and magnetic resonance imaging (MRI).

Study Design: Disk displacements were divided into 3 groups based on MRI findings: normal disk position (NR), disk displacement with reduction (DDR), and disk displacement without reduction (DDNR). After the angular and linear condylar dimensions were calculated from CT images, differences in condylar dimensions with respect to disk displacements and sex were analyzed with 2-way analysis of variance.

Anterior joint space narrowing in patients with temporomandibular disorder.

Purpose: The aim of this work is to investigate changes in the anterior joint space (AJS) and the relationship of such changes to clinical symptoms in chronic temporomandibular joint disorder (TMD) patients, and to compare symptoms between chronic and acute TMD patients.

Methods: Data from 100 TMD patients diagnosed based on the Diagnostic Criteria for Temporomandibular Disorders (55 women; mean age 34.34 ± 14.