An overview of artificial intelligence based applications for assisting digital data acquisition and implant planning procedures.

Objectives: To provide an overview of the current artificial intelligence (AI) based applications for assisting digital data acquisition and implant planning procedures.

Overview: A review of the main AI-based applications integrated into digital data acquisitions technologies (facial scanners (FS), intraoral scanners (IOSs), cone beam computed tomography (CBCT) devices, and jaw trackers) and computer-aided static implant planning programs are provided.

Conclusions: The main AI-based application integrated in some FS's programs involves the automatic alignment of facial and intraoral scans for virtual patient integration.

True horizontal or gravity plane for transferring the maxillary cast into the virtual articulator by using an optical jaw tracking system.

Different techniques of transferring the maxillary cast into the analog semi-adjustable articulator by using the true horizontal or gravity reference plane have been reported. However, procedures are required for recording this reference plane and transferring the maxillary cast into the virtual semi-adjustable articulator. In the present manuscript, a technique is described for registering the true horizontal or gravity plane in relationship to the natural head position of the patient by using an optical jaw tracking system.

Trueness of maxillomandibular relationship in 3D-printed and conventional casts.

Objectives: To compare the trueness of maxillomandibular relationship between articulated 3D-printed and conventional diagnostic casts in maximum intercuspation (MIP).

Methods: Reference casts were articulated in MIP, and scanned using a Coordinate Measurement Machine (CMM, n = 1). Digital scans were made from the reference casts by using an intraoral scanner (IOS, n = 10) (Trios 4; 3Shape A/S).

Influence of the ambient color lighting on the accuracy of complete arch implant scans recorded by using two intraoral scanners.

Statement Of Problem: The influence of different ambient factors including lighting has been previously studied. However, the influence of ambient color lighting settings on intraoral scanning accuracy remains uncertain.

Purpose: The purpose of this in vitro study was to assess the influence of ambient color lighting on the accuracy of complete arch implant scans recorded by using 2 intraoral scanners (IOSs).

Influence of scan extension and starting quadrant on the accuracy of four intraoral scanners for fabricating tooth-supported crowns.

Statement Of Problem: Multiple factors can influence the accuracy of intraoral scanners (IOSs). However, the impact of scan extension and starting quadrant on the accuracy of IOSs for fabricating tooth-supported crowns remains uncertain.

Purpose: The purpose of the present in vitro study was to measure the influence of scan extension (half or complete arch scan) and the starting quadrant (same quadrant or contralateral quadrant of the location of the crown preparation) on the accuracy of four IOSs.

Accuracy of the maxillary cast transfer into the virtual semi-adjustable articulator by using analog and digital facebow record methods.

Statement Of Problem: Different digital methods have been described for transferring the maxillary cast into a virtual articulator; however, its accuracy remains uncertain.

Purpose: The purpose of this in vitro study was to compare the accuracy of the maxillary cast transfer into the virtual semi-adjustable articulator by using analog and digital methods.

Material And Methods: A maxillary typodont with 5 markers was positioned into a mannequin, which was digitized by using an industrial scanner (ATOS Q) and an extraoral scan of the typodont obtained (T710).

Accuracy comparison of the maxillary cast transfer into the virtual semi-adjustable articulator between an analog facebow record and a digital photography technique.

Statement Of Problem: Digital photographs can be used for transferring the maxillary cast into the virtual semi-adjustable articulator; however, its accuracy remains unknown.

Purpose: The purpose of the present study was to compare the accuracy of the maxillary cast transfer into the virtual semi-adjustable articulator by using an analog and a digital standardized photography technique.

Material And Methods: A maxillary cast was digitized (T710) and positioned into a dental mannequin.

Accuracy of maximum intercuspal position located by using four intraoral scanners and an artificial intelligence-based program.

Statement Of Problem: Maxillary and mandibular scans can be articulated in maximum intercuspal position (MIP) by using an artificial intelligence (AI) based program; however, the accuracy of the AI-based program locating the MIP relationship is unknown.

Purpose: The purpose of the present clinical study was to assess the accuracy of the MIP relationship located by using 4 intraoral scanners (IOSs) and an AI-based program.

Material And Methods: Conventional casts of a participant mounted on an articulator in MIP were digitized (T710).

Creating an Extraordinary Outcome With Ordinary Digital Planning.

A patient was dissatisfied with her previous extensive dental treatment and wanted a comfortable bite with less gingival display for a more attractive smile. This article describes a systematic approach that was used in diagnosis, planning, and treatment sequencing to effectively manage the esthetic, functional, and biomechanical concerns involved in the case while minimizing risks. Digital planning enhanced interdisciplinary communication making the outcome more efficient and predictable.

Accuracy of an artificial intelligence-based program for locating the maxillomandibular relationship of scans acquired by using intraoral scanners.

Statement Of Problem: An artificial-intelligence (AI) based program can be used to articulate scans in maximum intercuspal position (MIP) or correct occlusal collisions of articulated scans at MIP; however, the accuracy of the AI program determining the MIP relationship is unknown.

Purpose: The purpose of the present clinical study was to assess the influence of intraoral scanner (IOS) (TRIOS 5 or i700) and program (IOS or AI-based program) on the accuracy of the MIP relationship.

Material And Methods: Casts of a participant mounted on an articulator were digitized (T710).

Influence of connected and nonconnected calibrated frameworks on the accuracy of complete arch implant scans obtained by using four intraoral scanners, a desktop scanner, and a photogrammetry system.

Statement Of Problem: Different techniques have been proposed for increasing the accuracy of complete arch implant scans obtained by using intraoral scanners (IOSs), including a calibrated metal framework (IOSFix); however, its accuracy remains uncertain.

Purpose: The purpose of this in vitro study was to compare the accuracy of complete arch scans obtained with connecting and non-connecting the implant scan bodies (ISBs) recorded using intraoral scanners (IOSs), a laboratory scanner (LBS), and photogrammetry (PG).

Material And Methods: A cast with 6 implant abutment analogs was obtained.

Misfit simulation on implant-supported prostheses with different combinations of engaging and nonengaging titanium bases: Part 3: A radiographic evaluation.

Statement Of Problem: The fit of implant-supported prostheses plays an important role in their mechanical and biological stability. Clinically, the prosthetic fit is typically assessed radiographically, but this method relies on the operator's subjective evaluation. Whether available digital tools could optimize the evaluation of the prosthetic fit is uncertain.

Facially driven guided crown lengthening using a complete digital workflow: A dental technique.

A facially driven digital guided crown lengthening method using the virtual smile design approach supplemented with a static 3-dimensional face scan that demonstrates the digital data of extraoral soft tissue is presented. The technique enables the practitioner to virtually design the new smile and surgically plan the crown lengthening procedure.

Phased Correction of a Worn Dentition With a Severe Occlusal Cant Using a Systematic Management System.

In cases of extreme worn dentition, being able to complete treatment over a series of phases can not only allow patients to move forward with treatment that fits into their budgetary and time constraints, but may also enable them to consider more comprehensive treatment options. In the case presented, the patient at presentation was well aware of his dental problems but overwhelmed by the scope and potential cost of comprehensive treatment. This case report illustrates the correction of the patient's severe occlusal cant and restoration of his worn dentition using phased digital treatment planning and a step-by-step management system.

Novel "All in 4-4-4" Hybrid Prosthesis: Bridging the Affordability Gap.

A strong body of scientific evidence indicates that a four dental implant-supported prosthesis is well suited for a full-arch rehabilitation. Yet, countless edentulous patients who could benefit from this established concept are left untreated because of high costs. This article describes a novel workflow that enables the fabrication of a metal-resin fixed hybrid prosthesis supported on four implants, with a variable cost for parts and material of around $400 and a (laboratory) production time of approximately 4 hours.

Artificial Intelligence: A Mighty Adjunct for Caries Detection.

Articifial intelligence (AI) is impacting many aspects of people's lives today. In fields such as finance, manufacturing, agriculture, insurance, education, and healthcare, AI has been commissioned to cut costs, increase efficiency, and improve accuracy. Like many innovations, the use of AI can have both positive and potentially negative consequences.

Influence of implant reference on the scanning accuracy of complete arch implant scans captured by using a photogrammetry system.

Statement Of Problem: Photogrammetry has been reported to be a reliable digital alternative for recording implant positions; however, the factors that may impact the accuracy of photogrammetry techniques remain unknown.

Purpose: The purpose of this in vitro study was to assess the influence of the implant reference on the accuracy of complete arch implant scans acquired by using a photogrammetry system.

Material And Methods: An edentulous cast with 6 implant abutment analogs (MultiUnit Abutment Plus Replica) was obtained and digitized by using a laboratory scanner (T710; Medit).

Impact of scanning distance on the accuracy of a photogrammetry system.

Purpose: To measure the impact of the scanning distance on the accuracy of complete-arch implant scans acquired by using a photogrammetry (PG) system.

Material And Methods: An edentulous cast with 6 implant abutment analogs was obtained. A brand new implant scan body was positioned on each implant abutment and digitized using an extraoral scanner (T710; Medit) and the reference file was obtained.

Digital workflow to measure the mandibular range of motion using different jaw tracking technologies.

The analysis of the mandibular range of motion (ROM) includes the evaluation of maximum opening, deviation upon opening, and amplitude of the left and right excursive movements and protrusion. Conventionally, ROM assessment has been directly measured in the patient's mouth by using a ROM ruler. The development of jaw tracking systems, such as magnetometry and photometric devices, allows the digital assessment of the mandibular ROM.

Integrating the repeatable reference position and excursive movements of the mandible acquired using a jaw tracker into the design procedures of an occlusal device: A technique.

Jaw tracking systems can record mandibular movement such as the repeatable reference position and excursive movements of the mandible. A technique for integrating the recorded repeatable reference position of the mandible and excursive movements captured using an optical jaw tracking system into the design procedures of an occlusal device is described. The mandibular motion of the patient is directly used to design the occlusal device, replacing the virtual articulator.

Repositioning accuracy of the implant- and abutment-level prosthetic components used in conventional and digital workflows.

Objectives: To evaluate the repositioning accuracy of the implant- and abutment-level impression components (impression abutments and implant scan bodies) and implant abutments (with and without anti-rotational hex index); also, to estimate the tightening torque influence on the positional stability of abutments.

Methods: Seven types of prosthetic components (n = 7) [impression pick-up copings (PC), implant scan bodies (ISB), non‑hex and hex titanium base implant abutments (TB H and TB NH), multi-unit impression copings (MU PC), multi-unit implant scan bodies (MU ISB), and multi-unit caps (MU C) (Medentika GmbH)] were tested. For repositioning accuracy tests a coordinate measuring machine (CMM) was used.

Digital diagnostic occlusal equilibration combining an intraoral scanner, optical jaw tracking system, and dental design program: A dental technique.

Patients with aberrant occlusal patterns, including constricted mastication patterns or occlusal dysfunction, may require occlusal equilibration. Conventional diagnostic procedures involve diagnostic stone casts mounted in the articulator. During diagnostic procedures, occlusal equilibration methods are simulated on mounted stone casts to analyze the amount of dental structure that may need to be removed.

Implementing an optical jaw tracking system to locate centric occlusion: A dental technique.

Optical jaw tracking systems are designed to record the static maxillomandibular relationship and the mandibular motion of a patient, including excursive movements and mastication pattern. This digital data acquisition technology can be integrated into diagnostic and treatment planning procedures, as well as into designing dental prostheses. A step-by-step protocol to record a patient's digital data, including the repeatable reference position of the jaw or centric relation, by using an intraoral scanner, Kois deprogrammer, and optical jaw tracking system is described.

Onboarding Intraoral Scanners and the Digital Workflow in Your Practice.

The benefits of transitioning from traditional analog workflows in dental practice to digital workflows are numerous and can be attained with wise choices and solid support. This transition begins with the integration of digital intraoral scanning into routine operations. The purpose of this article is to increase awareness of the clinical and management benefits of digital scanning and to aid clinicians in decision making regarding the incorporation of this technology into dental practice.

A modified reverse impression technique for capturing and transferring soft-tissue information.

The reverse impression technique consists of the extraoral digitalization of an implant-supported interim prosthesis by placing scan analogs in an interim implant-supported prosthesis. The technique facilitates the recording of implant and tooth positions and allows the digitalization of the volumetric dimensions of the interim restoration. However, it is not able to register soft tissue changes during the healing process.