Accuracy assessment of 3D-printed tooth replicas.

Aim: The production of individual tooth replicas has two applications in dental practice: tooth autotransplantations and dental root analogue implants. These applications require a particularly high degree of precision. The purpose of this study was to establish and evaluate a method for fabricating individual 3D-printed tooth replicas.

Immediate occlusal vs nonocclusal loading of implants: A randomized prospective clinical pilot study and patient centered outcome after 36 months.

Background: Immediate provisionalization reduces chair time and improves patient comfort.

Purpose: To analyze immediate functional loading vs nonfunctional loading with restorations in the posterior mandible for marginal bone defects, implant success/survival, and patient satisfaction.

Materials And Methods: A randomized controlled clinical trial was designed to assess these parameters based on 20 adult patients who underwent implant surgery, followed by immediate delivery of screw-retained or cemented single or splinted restorations in full occlusal contact or in infraocclusion (test and control group).

Immediate loading of four interforaminal implants supporting a locator-retained mandibular overdenture in the elderly. Results of a 3-year randomized, controlled, prospective clinical study.

Background: Implant-retained overdentures have become a standard option for the prosthetic treatment of the edentulous mandible in the elderly.

Purpose: This prospective study aimed to compare immediate and conventional loading of four interforaminal implants supporting a Locator-retained mandibular overdenture in elderly patients regarding implant survival, implant stability, and implant-related complications.

Material And Methods: The study population comprised 20 completely edentulous patients (11 males) aged 60 years and older with severe mandible resorption.

Immediate Occlusal versus Non-Occlusal Loading of Implants: A Randomized Clinical Pilot Study.

Background: Immediate occlusal and non-occlusal loading protocols have been discussed and, despite varying success rates, are considered viable in selected cases. Preoperative implant planning and intraoperative transfer are essential to the success of implant-supported reconstructions in partially or completely edentulous jaws.

Purpose: This study was performed to compare clinical outcomes of immediate occlusal versus non-occlusal loading of posterior implants.

Human cadaver study evaluating a new measurement technique for graft volumes after sinus floor elevation.

Purpose: Volumetric data can be used as complementary information to characterize grafting materials. The aim of this cadaveric study was to analyze a noncommercial measurement technique based on the novel concept of an "interactive rigid registration algorithm" (IRRA). Parameters analyzed included the reproducibility of IRRA measurements and their reliability in comparison with the established measurement technique of "region growing segmentation thresholding" (RGST).

Maxillary rehabilitation of periodontally compromised patients with extensive one-piece fixed prostheses supported by natural teeth: a retrospective longitudinal study.

Objectives: This study aims to evaluate the long-term success and stability of periodontal tissue around extensive one-piece prostheses supported by natural teeth in periodontally compromised maxillae.

Materials And Methods: A total of 28 fixed dental prostheses (FDPs) fabricated by different technologies were inserted in 28 patients with a history of chronic periodontitis after successful periodontal treatment. Subsequently, a program of supportive periodontal therapy (SPT) was instituted.

Three-dimensional accuracy of guided implant placement: indirect assessment of clinical outcomes.

Purpose: Precise preoperative implant planning and its exact intraoperative transfer are crucial for successful implant-supported rehabilitation of partially or completely edentulous patients. In the present pilot study, optical laser scanning was used to evaluate deviations between three-dimensional computer-assisted planned and actual implant positions by indirect methods.

Material And Methods: Five patients receiving a total of 15 implants were included in this study.

Immediate rehabilitation of the edentulous mandible with screw type implants: results after up to 10 years of clinical function.

Objectives: The aim of this prospective case series was to evaluate the results of an immediate loading concept using four Xi VE S plus implants in the edentulous mandible, after a period of up to 10 years of clinical function.

Material And Methods: Thirty patients were treated with four implants each placed interforaminally and provisionally restored within 1 week. Radiographic bone levels, condition of the peri-implant mucosa, implant survival and success were recorded annually from implant insertion (baseline) up to 10 years after final restoration.

Implant-prosthodontic rehabilitation of anterior partial edentulism: a clinical review.

Purpose: The aim of this retrospective study was to evaluate implant survival/success rates and peri-implant parameters as well as patient satisfaction for uniformly designed implant-supported anterior maxillary or mandibular fixed partial dentures (FPDs).

Materials And Methods: A retrospective study was conducted on patients with maxillary or mandibular anterior partial edentulism (all incisors missing) treated between 2002 and 2006 with a two-implant-supported four-unit FPD. All FPDs were of the same design: two implant abutments in the lateral incisor positions and two ovate pontics in the central incisor positions.

Overdentures in the edentulous mandible supported by implants and retained by a Dolder bar: a 5-year prospective study.

Purpose: This prospective study was performed to evaluate the outcomes of XiVE® S plus implants (Dentsply Friadent, Mannheim, Germany) following conventional restoration with bar structures and overdentures in the edentulous mandible.

Materials And Methods: A total of 39 patients were treated with four interforaminal implants (n = 156) splinted by a Dolder bar. Overdentures were attached to the bars after 3 months of healing.

Soft tissue development around abutments with a circular macro-groove in healed sites of partially edentulous posterior maxillae and mandibles: a clinical pilot study.

Objectives: The aim of this study was to evaluate soft tissue development at concave circular macro-grooved titanium abutments in healed sites.

Material And Methods: In a split-mouth pilot study 10 patients received two implants each at healed posterior sites in contralateral maxillary or mandibular jaw quadrants. Either circular macro-grooved concave study abutments or conventional convex control abutments were immediately provisionalized and received permanent crowns 3 months postimplantation.

Immediate provisional restoration of screw-type implants in the posterior mandible: results after 5 years of clinical function.

Objective: The aim of this prospective study was to evaluate the outcome of immediately provisionally restored implants in the posterior mandible after a minimum of 60 months in function.

Material And Methods: Twenty-four patients were treated with 40 screw-type implants replacing mandibular molars and premolars. Implants were provisionalized immediately after placement.

Oral rehabilitation of adult twins with severe lack of bone due to hypohidrotic ectodermal dysplasia--a 12-month follow-up.

Purpose: Patients with x-linked hypohidrotic ectodermal dysplasia (XLHED, OMIM 305100) often present with exceptional oral conditions, because alveolar ridges can remain severely hypotrophic due to oligo- or anodontia in the primary and/or permanent dentition. This can seriously disable a young person physically and psychologically, and lead to sociopsychological isolation.

Patients And Methods: The oral rehabilitation of fraternal male twins with XLHED, one with severe hypodontia and the other with anodontia is described.

Surgical factors influencing mesiodistal implant angulation.

Objectives: The aim of this experimental study was to identify relevant surgical parameters influencing the mesiodistal angular deviation of dental implants.

Material And Methods: Pilot drillings of 2 mm diameter were performed in bovine ribs with a parallelometer. The subsequent preparation of the implant socket was performed freehand.

Immediate provisional restoration of XiVE screw-type implants in the posterior mandible.

Objectives: This prospective study evaluated the clinical outcome of immediately restored screw-type implants for the replacement of mandibular (pre)molars. The results were based on survival, clinical stability and on changes of bone levels from implant placement to delivery of the definitive superstructure 6 months after insertion.

Material And Methods: In this study, 24 patients were treated according to an immediate loading protocol.

Harvesting of cancellous bone from the proximal tibia under local anesthesia: donor site morbidity and patient experience.

Purpose: The objective of this retrospective study was to evaluate postoperative morbidity, risk of complications, and patient discomfort after ambulatory tibial bone harvesting procedures under local anesthesia.

Patients And Methods: Between 2000 and 2005, bone was harvested from the head of the tibia for internal or external maxillary augmentation in 79 patients. A medial osteoplastic approach to the donor region was used.

In-patient comparison of immediately loaded and non-loaded implants within 6 months.

According to the Brånemark protocol, a stress-free healing period is one of the most emphasised requirements for implant integration. Recent studies have encouraged a progressive shortening of the healing period and immediate loading has been proposed for the edentulous mandible. This prospective study evaluated the clinical outcomes of 14 immediately loaded FRIALIT-2(R) implants compared with 28 non-loaded controls in an in-patient study.

Immediate loading of single-tooth implants in the anterior maxilla. Preliminary results after one year.

According to the standard protocol, a load-free healing period is one of the most emphasized requirements for implant integration. Recent studies have encouraged a progressive shortening of the healing period for single-tooth implants and immediate loading has been proposed for the aesthetic zone in the maxilla. The present study evaluated clinical outcomes of immediately loaded FRIALIT-2 Synchro implants 12 months after placement in the maxillary incisal region.

Evaluation of implants placed with barrier membranes. A restrospective follow-up study up to five years.

This follow-up study evaluated clinical and radiographic parameters of dental implants placed in combination with guided bone regeneration with barrier membranes. All implants functioned well up to 60 months after insertion. Forty-one patients, with a total of 72 augmented implants, who participated in a regular maintenance protocol, were investigated.