The Three-Dimensional Investigation of the Radiographic Boundary of Mandibular Full-Arch Distalization in Different Facial Patterns.

Objective: Mandibular full-arch distalization (MFD) is a popular approach, particularly in non-extraction cases. However, we still cannot confirm whether facial patterns affect the amount of limits. This study aimed to determine the anatomical MFD limits in patients with different facial patterns.

Approaching patients with panfacial fractures by using an anatomical reference: A novel concept and preliminary study.

Panfacial fractures are challenging for craniofacial surgeons. Aside from involving multiple subunits, they also lack the reliability of a useful landmark of the facial skeleton. Properly, reducing and fixing palatal fracture to re-establish the premorbid maxillary dental arch is important.

The Application of Artificial-Intelligence-Assisted Dental Age Assessment in Children with Growth Delay.

Background: This study aimed to reveal the efficacy of the artificial intelligence (AI)-assisted dental age (DA) assessment in identifying the characteristics of growth delay (GD) in children.

Methods: The panoramic films matching the inclusion criteria were collected for the AI model training to establish the population-based DA standard. Subsequently, the DA of the validation dataset of the healthy children and the images of the GD children were assessed by both the conventional methods and the AI-assisted standards.

The Predictability of the Surgical Outcomes of Class III Patients in the Transverse Dimension-A Study of Three-Dimensional Assessment.

This study aimed to assess the outcomes of planned maxillary surgical movements in the transverse direction in patients possessing a Class III skeletal pattern. The available consecutive patients' records were retrospectively reviewed. Only those possessing a Class III skeletal pattern, and for whom the same virtual planning system was used, were enrolled.

A Comparative Study of Skeletal and Dental Outcome between Transcutaneous External Maxillary Distraction Osteogenesis and Conventional Rigid External Device in Treating Cleft Lip and Palate Patients.

Background: Traditional distraction osteogenesis (DO) with the tooth-borne rigid external device (RED) system was regularly used in treating patients with cleft-related maxillary hypoplasia. However, the bone-borne RED system with miniplates and bone screws has currently become an effective treatment. This retrospective study was to compare bone-borne RED with traditional tooth-borne RED in distraction effectiveness, blood loss, operative time, and long-term stability.

Postsurgical Stability of Temporomandibular Joint of Skeletal Class III Patients Treated with 2-Jaw Orthognathic Surgery via Computer-Aided Three-Dimensional Simulation and Navigation in Orthognathic Surgery (CASNOS).

Objective: The aim of this study is to clarify the postsurgical stability of temporomandibular joints in skeletal class III patients treated with 2-jaw orthognathic surgery which was performed utilizing computer-aided three-dimensional simulation and navigation in orthognathic surgery (CASNOS) protocol.

Materials And Methods: 23 consecutive nongrowing skeletal class III patients with mandibular prognathism associated with maxillary retrognathism treated with 2-jaw orthognathic surgery between 2018 and 2019 were enrolled in this study. The surgery was planned according to the standardized protocol of CASNOS (computer-aided three-dimensional simulation and navigation in orthognathic surgery).

Intraoperative Blood Loss and Postoperative Pain in the Sagittal Split Ramus Osteotomy and Intraoral Vertical Ramus Osteotomy: A Literature Review.

Purpose: The purpose of the present study was to review the literature regarding the blood loss and postoperative pain in the isolated sagittal split ramus osteotomy (SSRO) and intraoral vertical ramus osteotomy (IVRO).

Materials And Methods: Investigating the intraoperative blood loss and postoperative pain, articles were selected from 1970 to 2021 in the English published databases (PubMed, Web of Science, and Cochrane Library). Article retrieval and selection were performed by two authors, and they independently evaluated them based on the eligibility criteria.

One-Year Treatment Outcome of Profile Changes After Transcutaneous Maxillary Distraction Osteogenesis in Growing Children With Cleft Lip and Palate.

Objective: To evaluate the long-term stability of LeFort I osteotomy followed by distraction osteogenesis with a transcutaneous rigid external device for the treatment of severe maxillary hypoplasia in patients with cleft lip and palate.

Patients And Methods: Nine patients with cleft lip and palate underwent rigid external distraction after a LeFort I osteotomy for maxillary advancement. Lateral cephalometric films were analyzed for assessment of treatment outcome and stability in 1 month, 6 months, and 1 year after distraction.

Roles of autophagy in orthodontic tooth movement.

Introduction: Orthodontic tooth movement (OTM) relies on efficient remodeling of alveolar bone. While a well-controlled inflammatory response is essential during OTM, the mechanism regulating inflammation is unknown. Autophagy, a conserved catabolic pathway, has been shown to protect cells from excess inflammation in disease states.

Accuracy assessment of computer-aided three-dimensional simulation and navigation in orthognathic surgery (CASNOS).

Purpose: This study is aimed for measuring the accuracy of simulation and prediction of our CASNOS protocol in adult patients treated with 2-jaw orthognathic surgery.

Methods: Adult patients with skeletal Class III malocclusions requiring 2-jaw orthognathic surgery were enrolled in the study. Three-dimensional imaging data of 1-month pre-surgical (T1) and 6-month post-surgical (T2) CT were compared to assess accuracy of CASNOS planning.

The Inhibition of Radial and Axial Micromovement of Bone Scaffold with Gelfoam and Titanium Mesh Fixation and Its Effects on Osteointegration.

A major drawback of nanocomposite scaffolds in bone tissue engineering is dimensional shrinkage after the fabrication process. Shrinkage yields gaps between the scaffold and host bone in the defect site and eventually causes failure in osteointegration by micromovement. The present study was conducted using titanium (Ti) mesh and Gelfoam to prevent radial and axial micromovement, respectively.

Relationship between the maxillofacial skeletal pattern and the morphology of the mandibular symphysis: Structural equation modeling.

Objective: The purpose of this study was to investigate the relationship between the facial skeletal patterns and the shape of the mandibular symphysis in adults with malocclusion by using a structural equation model (SEM).

Methods: Ninety adults who had malocclusion and had records of facial skeletal measurements performed using cone-beam computed tomography were selected for this study. The skeletal measurements were classified into three groups (vertical, anteroposterior, and transverse).

Three-Dimensional Outcome Assessments of Cleft Lip and Palate Patients Undergoing Maxillary Advancement.

Background: The aim of this retrospective case series study was to compare three-dimensional postsurgical outcomes of patients with cleft lip and palate following maxillary advancement.

Methods: Fifty consecutive cleft lip and palate patients who underwent whole-pieced Le Fort I advancements were assigned to the major (advancement ≥ 5 mm) or minor (advancement < 5 mm) groups. Three-dimensional surgical simulation was used for presurgical evaluation and planning.

Effect of pore size in bone regeneration using polydopamine-laced hydroxyapatite collagen calcium silicate scaffolds fabricated by 3D mould printing technology.

Objective: The pore size of the scaffold is a critical factor in repairing large bone defect. Here, we investigated the potential of bone regeneration using novel nanocomposite polydopamine-laced hydroxyapatite collagen calcium silicate (HCCS-PDA) scaffolds with two different pore sizes, 250 and 500 μm.

Samples/setting: A total of 12 male Sprague-Dawley rats were implanted with HCCS-PDA scaffold with pore size of either 250 or 500 μm into surgically created critical-sized defect (CSD).

Analysis of the relationship between the morphology of the palate and facial skeletal patterns in Class III malocclusion using structural equation modelling.

Introduction: The present study investigated the relationship between facial skeletal patterns and morphology of the palate in adult patients with Class III malocclusion using structural equation modelling (SEM).

Setting And Sample Population: One hundred cone beam computed tomography images of Class III adults were evaluated for skeletal measurements.

Materials And Methods: The skeletal measurements were classified into the vertical, anteroposterior and transverse group based on factor analysis.

Blood loss and operative time associated with orthognathic surgery utilizing a novel navigation system in cleft lip and palate patients.

Purpose: This retrospective study evaluated the volume of blood loss and operative time associated with management of nongrowing patients with cleft lip and palate (CLP) using bimaxillary orthognathic surgery (OGS) designed by a three-dimensional (3D) computer-assisted simulation and navigation for orthognathic surgery (CASNOS) system.

Methods: This study included 53 skeletal Class III nongrowing patients with unilateral CLP who underwent bimaxillary OGS using either the CASNOS protocol (n = 30) or the traditional two-dimensional (2D) method (n = 23). The skeletal parameters of jaw-bone components, the levels of hemoglobin (Hb) and hematocrit (Hct) were measured before and after surgery.

Correlation between the cross-sectional morphology of the mandible and the three-dimensional facial skeletal pattern: A structural equation modeling approach.

Objective: To clarify the relationship between the cross-sectional morphology of the mandible and vertical, transverse, and anteroposterior facial skeletal patterns using statistical shape analysis and structural equation modeling (SEM).

Materials And Methods: We used 150 cone beam computed tomography (CBCT) images to obtain three-dimensional (3D) facial landmarks and cross-sectional images of the mandible. The morphology of the inner and outer cortices of the mandible was analyzed using statistical shape analysis, including generalized Procrustes analysis and principal component analysis (PCA).