This study aims to evaluate the performance of latest large language models (LLMs) in answering dental multiple choice questions (MCQs), including both text-based and image-based questions. A total 1490 MCQs from two board review books for United States National Board Dental Examination were selected. evaluated six LLMs as August 2024, ChatGPT 4.0 omni (OpenAI), Gemini Advanced 1.5 Pro (Google), Copilot with GPT-4 Turbo (Microsoft), Claude 3.5 Sonnet (Anthropic), Mistral Large 2 (Mistral...

Objective This study aims to evaluate the clinical transfer accuracy of partially enclosed single hard vacuum-formed trays based on three-dimensional (3D) printed models for lingual bracket indirect bonding. Materials and methods Thirty-two consecutive patients receiving orthodontic treatment were enrolled. Digital with ideal positions 3D-printed, followed by fabrication trays. impressions captured actual compared positions. One-tailed t-tests assessed if errors within clinically acceptable...

With the advancement of 3-dimensionally (3D) printing technology, orthodontists can design and fabricate 3D-printed indirect bonding trays transfer jigs for lingual brackets independently from laboratory. The present article describes, in detail, digital workflows designing fabricating bracket jigs. Additionally, it aims to demonstrate effectiveness this approach managing common orthodontic issues adult patients. first case report exemplifies successful management moderate crowding a Class I...

Rationale: Laminate veneers have become the treatment of choice for restoring tooth esthetics and function conservatively. However, due to their thin nature, esthetic rehabilitation discolored teeth following pulp necrosis can be challenging. Translucent zirconia offers a favorable balance between masking ability optical translucency while maintaining high durability. To enhance bonding strength adhesive agents, surface with strong acids has been extensively investigated in laboratory...

This case report presents the management of an adult patient with moderate crowding in both arches and anterior crossbite passive self-ligating lingual brackets. The orthodontic setup bracket positioning was done digitally in-house approach. Virtual placement performed on Autolign software (Diorco, Gyeonggi-do, Korea). indirect bonding trays were vacuum-formed printed malocclusion models resin Two palatal two buccal shelf miniscrews used for two-arch distalization to correct proclined...

Abstract The treatment of Class II division 2 patients with palatally inclined upper incisors using lingual appliances is generally challenging due to difficulties in achieving incisor torque control. present case series aims describe a simple method combining and mini-screws for the non-surgical management two severe presenting deep overbites gummy smiles. plans involved initial bite opening recovery, followed by distalisation entire arch mini-screw anchorage. In one case, additional...

Rationale: Lingual brackets are typically bonded indirectly based on setup models with ideal tooth alignment to overcome the variability in lingual anatomy and difficulties measuring bracket position. However, direct bonding is original philosophy of inventor orthodontics still performed by a minority orthodontists. This article aims revise clinical procedures forming archwires prove effectiveness through two case reports. Patient concerns: The patient Case 1 was 29-year-old female who...

Acid-etched zirconia has emerged as a high-strength alternative to traditional glass ceramics for laminate veneers in aesthetic dentistry. This randomized, double-blind controlled clinical trial aimed evaluate the one-year performance of etched with hydrofluoric-nitric acid mixture and bonded using 10-methacryloyloxydecyl dihydrogen phosphate (MDP) containing polymeric adhesive system, compared lithium disilicate veneers. Fifty-two patients were treated either translucent or veneers,...

Abstract With the advancement of three-dimensional (3D) printing technology, orthodontists are able to design and manufacture customised lingual appliances, which may increase treatment versatility reduce costs. The present article describes digital workflows associated with double-slotted brackets arch wires. Also demonstrated is technique’s efficiency through a non-extraction case report. An adult patient moderate crowding in both arches was successfully treated using 3D-printed appliances...

A skeletal Class III malocclusion with open bite tendency is considered very difficult to treat orthodontically without surgery. This case report describes the lingual orthodontic treatment of an adult patient mandibular deviation left side, lateral bite, unilateral posterior crossbite, zero overbite and negative overjet. The lower incisors were already retroclined compensate discrepancy. was treated by asymmetric molar extraction in arch retract correct dental midline, help intermaxillary...

Abstract Objectives Provisional crowns play an integral role in prosthodontic therapy and need to be fabricated with high accuracy ensure good marginal fit proper contour. The aim of this study is evaluate the effect 3D printer's horizontal pixel resolution on trueness intaglio surface, external area actual adaptation interim crowns. Materials Methods A gypsum reference model mandible a prepared right first molar was scanned dental laboratory scanner (AutoScan-DS-MIX, Shining 3D) digital...

This study aimed to evaluate the effects of different surface preparation techniques on microstructure, shear bond strength (SBS) between zirconia and an MDP-containing light-cured veneer adhesive system, failure mode. Sixty-four specimens were divided into four groups based methods (n = 16), including sandblasting (ZSB), vitrification or glaze-on (ZVG), architecture technique (ZSAT), ZSAT-ZVG combined (ZSATVG) groups. Sixteen lithium disilicate prepared by etching with hydrofluoric acid...

A novel antenna with both horizontal and vertical polarizations is proposed for 1.7-2.1 GHz LTE band small cell base stations. Horizontal polarization achieved by using the Vivaldi antennas at main PCB board in azimuth plane, whereas obtained rectangular monopole curved corners proximity of elements. prototype associated 8-elements (four four vertical) fabricated on FR4 substrate thickness 0.2 cm 0.12 antennas, respectively. Experimental results have validated design procedure a volume 14 ×...

Purpose: The improvement of computer-aided design and manufacturing (CAD/CAM) has changed the methods fabricating laminate veneers. objectives this study were to evaluate marginal internal fit ceramic veneers manufactured with different CAD/CAM techniques. Materials methods: A metal die was made by copying a prepared plastic maxillary central right incisor scanned for designing veneer. One hundred four techniques (n=25), including milled lithium disilicate (MLD), heat-pressed 3-dimensional...

Abstract An iatrogenic open bite after orthognathic surgery is an uncommon malocclusion, with only one documented case reported in the literature. However, this report was not a true bite, as it resulted from interferences between maxillary second molars and mandibular retromolar bones. This aims to present management of posterior teeth centric occlusion, occurring setback surgery. The anterior accompanied severe class II malocclusion increased lower facial height. patient treated fixed...

Rationale: Current literature describes only 2 cases combining miniscrew-assisted rapid palatal expansion (MARPE) with lingual appliances. These require impressions, 1 before and after expansion, to ensure accurate appliance placement, potentially increasing treatment time cost. This case report aimed demonstrate a modified workflow of MARPE appliances in managing an adult patient anteroposterior transversal discrepancies, requiring single digital impression for both fabrication positioning....

Aim: It is important to meet the aesthetic expectation regarding smile concept of both dentists and non-professionals after treatment complete. Therefore, study aims evaluate effects altered displays in incisors, gingival margin, other smile-related-factors on dentists' vs. non-professionals' aesthetics perceptions. Materials method: We features 42 digital photographs generate changed smile-related-factors. Then, these were presented 51 non-professionals, each picture was rated by...