Influence of Horizontal Intraoral Scan Bodies on the Trueness of Digital Impressions for Complete-Arch Prostheses on Four Implants: An In Vitro Evaluation.

Objective: To assess the impact of horizontal intraoral scan bodies (H-ISBs) on the trueness of complete-arch digital impressions compared to vertical ISBs (V-ISBs). To evaluate trueness among four intraoral scanners (IOS) and inter-operator variability across different ISB × IOS combinations.

Materials And Methods: Digital impressions were made from a dental cast with four multi-unit analogs using four H-ISBs: H-NB, H-NS, H-M6, H-SF, and a V-ISB (V-EA) as a comparison.

Glossary of Computer-Assisted Implant Surgery and Related Terms. First Edition.

The rapid development of computer-assisted implant surgery (CAIS) and the respective research and clinical applications have necessitated a standardization of the terminology related not only to different devices, but also the different steps involved, surgical and presurgical procedures. The present glossary was introduced at the 1st International Team for Implantology Symposium on Computer-assisted Implant Surgery, based on the collective work of clinicians and researchers with deep understanding and experience in these technologies. The glossary was further refined and revised through the structured input of a large group of global experts within clinical application, research, and education of CAIS.

Effect of Horizontal and Vertical Intraoral Scan Bodies on the Trueness of Complete-Arch Digital Implant Impressions: A Comparative In Vitro Study With Six Implants.

Objective: To evaluate the interaction between intraoral scan body (ISB) type, operator, and intraoral scanner (IOS) selection on the trueness of complete-arch digital implant impressions. This study also compared horizontal ISBs (H-ISBs) and vertical ISBs (V-ISBs) across four IOS devices.

Material And Methods: Digital impressions of a definitive mandibular cast with six multi-unit analogs were made using four H-ISBs from different manufacturers (denoted as H-NB, H-NS, H-M6, and H-SF), with a V-ISB (V-EA) as the reference.

Photogrammetry Versus Intraoral Scanning in Complete-Arch Digital Implant Impression: A Systematic Review and Meta-Analysis.

Statement Of The Problem: The application of digital impressions for complete-arch implant supported fixed dental prostheses (FDP) remains controversial, and data from a systematic review with meta-analysis comparing intraoral scanning (IOS) and stereophotogrammetry (SPG) remain limited.

Purpose: To evaluate and compare the accuracy of currently available digital technologies, specifically IOS and SPG, in capturing complete-arch implant impressions.

Materials And Methods: An electronic and manual search was conducted on May 4, 2024, across PubMed, Embase, and Cochrane CENTRAL databases following PRISMA guidelines.

Intra Oral Photogrammetry: Trueness Evaluation of Novel Technology for Implant Complete-Arch Digital Impression In Vitro.

Objectives: To investigate the trueness of intraoral photogrammetry (IPG) technology for complete-arch implant digital impression and evaluate the effect of implant number.

Material And Methods: All data were fully anonymized in compliance with ethical standards, and a total of 30 complete-arch patient models with 4 (n = 13), 5 (n = 9), or 6 (n = 8) implants were selected from the archive. Digital impressions were taken with IPG and a desktop scanner.

Complete arch digital implant scan accuracy with screw-retained or snap-on scan bodies: A comparative in vitro study.

Statement Of Problem: Different scan body types have been reported to influence intraoral scanning accuracy. Stiff implant connections allow the use of snap-on scan bodies. However, data on the influence of scan body retention type are lacking.

Image-guided photogrammetry accuracy: In vitro evaluation of an implant-supported complete arch digital scanning technology.

Statement Of Problem: Complete arch digital scanning with intraoral scanners (IOSs) for implant-supported fixed dental prostheses (FDPs) is controversial with current technologies, and accuracy and consistency are insufficient. Stereophotogrammetry (SPG) may capture precise implant coordinates but unrelated to the patient anatomy. Conclusive data comparing IOS versus SPG are lacking.

In Vivo Accuracy of Autonomous Dental Implant Robotic Surgery: Systematic Review and Meta-analysis.

Purpose: To systematically analyze the accuracy of autonomous dental implant robotic (ADIR) surgery for dental implant placement.

Materials And Methods: PubMed, Embase, and Cochrane CENTRAL were searched on February 21, 2024. Any clinical studies, with the exception of case reports, assessing ADIR accuracy by superimposing preoperative digital planning with postoperative CBCT images were included.

Zygoma Bone Shell Technique: A Proof-of-Concept Surgical Protocol in Human Cadaver for Bone Reconstruction After Zygomatic Implant Failure.

Objectives: This article aims to present a proof-of-concept surgical technique for immediate reconstruction of zygoma anatomy following implant failure and complications, illustrating the related clinical steps in a cadaver specimen. Zygomatic implants represent a paradigm shift, addressing challenges posed by severe maxillary bone atrophy and partial or complete maxillectomy, not suitable for conventional dental implant placement. Despite documented high survival rates, intra- and postoperative complications can occur and lead to implant failure, resulting in severe defects extended up to entire height of zygomatic bone pyramid.

Comparing Medium to Long-Term Esthetic, Clinical, and Patient-Reported Outcomes Between Freehand and Computer-Assisted Dental Implant Placement: A Cross-Sectional Study.

Objective: The aim of the study was to compare medium to long-term clinical and patient-reported outcomes between implants placed with computer-assisted implant surgery (CAIS) and freehand protocols.

Materials And Methods: Thirty dental implants in the anterior maxillary region with an average of 4 years after loading were assessed by means of Pink Esthetic Scores (PESs), marginal bone level (MBL), and clinical and patient-reported outcomes.

Results: CAIS significantly outperformed freehand placement with regard to PES scores (p = 0.

Esthetically driven immediate provisionalization in the anterior zone: 5-year results from a prospective study evaluating 3.0-mm-diameter tapered implants.

Objectives: Evaluate the 5-year safety and efficacy of a narrow-diameter (3.0 mm) implant that was immediately provisionalized with a single crown in the maxillary lateral incisor or mandibular central or lateral incisor area.

Materials And Methods: An open, prospective, single-cohort, multicenter study was conducted, in which narrow-diameter implants were placed in fresh, healed extraction, or congenitally missing sites.

Accuracy of navigation guided implant surgery for immediate loading complete arch restorations: Prospective clinical trial.

Objectives: To assess navigation accuracy for complete-arch implant placement with immediate loading of digitally prefabricated provisional.

Materials And Methods: Consecutive edentulous and terminal dentition patients requiring at least one complete-arch FDP were treated between December 2020 and January 2022. Accuracy was evaluated by superimposing pre-operative and post-operative cone beam computed tomography (CBCT), recording linear (mm) and angular (degrees) deviations.

Computer-assisted and robotic implant surgery: Assessing the outcome measures of accuracy and educational implications.

Objective: This scoping review aimed to (1) critically evaluate the outcomes measures used to assess the accuracy of implant placement with Computer Assisted Implant Surgery (CAIS) and (2) review the evidence supporting the efficient implementation of CAIS in training and education of clinicians.

Methods: A scoping literature review was conducted aiming to identify (a) clinical trials assessing accuracy of implant placement with CAIS, and (b) clinical trials or simulation/cadaver studies where CAIS was utilised and assessed for the training/education of clinicians. Studies since 1995 were assessed for suitability and data related to the outcomes measures of accuracy and educational efficacy were extracted and synthesised.

Translucent monolithic zirconia titanium-supported FP1 full-arch prosthesis: A novel proof of concept to address esthetic, functional, and biologic challenges.

Objective: Despite the wide clinical use of translucent zirconia for full-arch implant prostheses, reduced flexural strength and fracture toughness compared with high-strength opaque zirconia needs to be addressed. A novel proof of concept for FP1 full-arch prosthesis featured by translucent monolithic zirconia and titanium framework was presented.

Clinical Considerations: Computer-guided implant planning and surgery were executed and digitally designed FP1 temporary prosthesis prefabricated.

Accuracy of intraoral optical scan versus stereophotogrammetry for complete-arch digital implant impression: An in vitro study.

Purpose: To assess and compare the accuracies of intraoral scanners (IOS) and stereophotogrammetry (SPG) devices for complete-arch digital implant impressions.

Methods: A 4-analog model was digitized using a desk scanner to obtain a reference file. Thirty test scans were conducted using the investigated IOS device, while an additional 30 scans were performed using the SPG device.

Mandibular Flexure and Its Significance: An In Vivo Cone Beam-Computed Tomography Proof-of-Concept Study.

The aim of this study was to assess intra-arch mandibular dimensional changes that may occur during mouth opening using cone beam-computed tomography (CBCT). Fifteen patients in need of any type of treatment whose execution considered a pre- and post-CBCT assessment consented and were enrolled. CBCTs were taken with the following settings: 90 kV, 8 mA, field of view (FOV) 140 by 100 mm (height and diameter), Voxel size 0.

Clinical outcomes of full-arch immediate fixed prostheses supported by two axial and two tilted implants: A retrospective cohort study with 12-15 years of follow-up.

Purpose: To retrospectively assess clinical and radiographic outcomes of immediately loaded full-arch fixed prostheses supported by axial and tilted implants up to 15 years of function.

Materials And Methods: Patients with one completely edentulous arch received an immediate full-arch fixed prosthesis supported by two anterior axial and two posterior tilted implants. Definitive prosthesis consisting of a CAD-CAM titanium framework and acrylic teeth was delivered 6 months later.

Outcomes of Fixed Full-Arch Rehabilitations Supported by Tilted and Axially Placed Implants: A Systematic Review and Meta-Analysis.

Purpose: To evaluate the performance of fixed complete dental prostheses supported by axial and tilted implants after at least 3 years of follow-up.

Materials And Methods: An electronic search plus a hand search up to April 2021 was undertaken. Clinical studies were selected using specific inclusion criteria, independent of the study design.

Accuracy of Computer-Assisted Flapless Implant Placement by Means of Mucosa-Supported Templates in Complete-Arch Restorations: A Systematic Review.

The aim of this study was to systematically review the current scientific literature regarding the accuracy of fully guided flapless implant positioning for complete-arch rehabilitations in edentulous patients and to assess if there was any statistically significant correlation between linear deviation at shoulder point, at apex point and angular deviation. The electronic and manual literature search of clinical studies was carried out using specified indexing terms. A total of 13 studies were eligible for qualitative analysis and 277 edentulous patients were rehabilitated with 1556 implants patients by means of fully guided mucosa-supported template-assisted flapless surgery.

Accuracy of complete-arch digital implant impression with or without scanbody splinting: An in vitro study.

Objectives: To assess accuracy of implant complete-arch digital impression with intraoral scanner (IOS) and implant scanbody splinting (ISS).

Methods: An edentulous mandibular model with 4 analogues was fabricated. Four polyetheretherketone (PEEK) implant scanbodies (ISBs) were scanned, according to a randomized sequence, by investigated IOS with (ISS+) and without implant scanbody splinting (ISS-), resulting in 30 test and 30 control files.

Effect of splinting scan bodies on trueness of complete-arch implant impression using different intraoral scanners: an in vitro study.

Aim: To evaluate the trueness of seven different intraoral scanners (IOSs) in making a complete-arch digital scan with and without splinting the scan bodies.

Materials And Methods: A polyurethane cast of an edentulous mandible with four dental implant analogs was prepared. A reference scan was made using a laboratory scanner.

Immediately provisionalized tapered conical connection implants for single-tooth restorations in the maxillary esthetic zone: a 5-year prospective single-cohort multicenter analysis.

Objectives: This open, single-cohort, multicenter, prospective study investigated the efficacy of immediately provisionalized tapered conical connection implant for single-tooth restorations in the anterior and premolar regions of the maxilla after 5 years of function.

Materials And Methods: All implants were placed in healed sites and immediately provisionalized. MBLs, soft-tissue parameters, and oral-health impact profile (OHIP) were evaluated at implant insertion, 6, 12, 24, 36, and 60 months.

Navigation guided socket-shield technique for implant and pontic sites in the esthetic zone: A proof-of-concept 1-year prospective study with immediate implant placement and loading.

Objective: To assess clinical, radiological performance of novel navigation guided socket-shield technique (NSS) with immediate implant placement and loading.

Materials And Methods: Eighteen patients (12 females; age 52.54 ± 4.

Clinical and radiological outcomes of novel digital workflow and dynamic navigation for single-implant immediate loading in aesthetic zone: 1-year prospective case series.

Objectives: To evaluate clinical, radiological performance of novel digital workflow integrating dynamic navigation to streamline in one-visit single-implant immediate loading in aesthetic zone.

Material And Methods: Consecutive patients requiring one single-implant in aesthetic zone of both jaws were treated between May and September 2017. Primary outcomes were implant and prosthetic success rates, surgical and prosthetic complications, marginal bone loss (MBL), final pink aesthetic score (PES-f), and implant stability quotient (ISQ-f).