Evaluation of Edentulous Maxillary and Mandibular Full Arch Implant Supported Rehabilitation Using the All-on-Four Treatment Concept: An 8-Year Follow-Up Retrospective Study.

The "all-on-four" treatment modality is a treatment in which four implants are surgically placed in the completely edentulous jaw in order to restore immediately loaded implant supported fixed restoration. The aim of the present study was to compare clinical, radiological and prosthetic outcomes of immediately loaded maxillary and mandibular four implant supported cross-arch fixed denture prosthesis. A total of 112 edentulous patients who were rehabilitated for their complete maxillary and mandibular edentulism using All-on-four concept between January 2010 to August 2012 in four private dental clinics were included in this study for retrieve their data for marginal bone loss, implant survival rate, and prosthetic complication for a period of 8 years of follow-up.

Vertical ridge augmentation using deproteinized bovine bone material without covering with a membrane: a tunnel pouch technique- 4-year follow-up- A pilot clinical study.

Purpose Of The Study-: The present pilot clinical trial was planned to evaluate the effect of particulate deproteinized bovine bone graft mixed with blood could be used as a vertical ridge augmentation material without covering with any form of collagen membrane in a tunnel pouch technique, resulting in sufficient bone formation to allow placement of dental implants, with maintenance of the newly formed bone after final restoration.

Material And Methods—: Eight patients (three males and five females) were selected for this procedure and treated between February 2016 and December 2017. All these patients had a deficient vertical height of the posterior mandibular alveolar bone above the inferior alveolar canal.

Comparative Evaluation of Implant-Protected Occlusion in Partially Edentulous Fixed Restoration Using Qualitative and Quantitative Assessment - A Prospective Clinical Trial.

Objectives: To compare and evaluate the occlusal variability/discrepancy recorded using qualitative (articulating paper) and quantitative (T-scan) techniques in partially edentulous implant-supported restorations.

Materials And Methods: A total of 20 patients in the age group of 25-61 yrs participated in this study. All the patients had more than one tooth replaced with implant-supported prosthesis.

ITI consensus report on zygomatic implants: indications, evaluation of surgical techniques and long-term treatment outcomes.

Objectives: The aim of the ITI Consensus Workshop on zygomatic implants was to provide Consensus Statements and Clinical Recommendations for the use of zygomatic implants.

Materials And Methods: Three systematic reviews and one narrative review were written to address focused questions on (1) the indications for the use of zygomatic implants; (2) the survival rates and complications associated with surgery in zygomatic implant placement; (3) long-term survival rates of zygomatic implants and (4) the biomechanical principles involved when zygoma implants are placed under functional loads. Based on the reviews, three working groups then developed Consensus Statements and Clinical Recommendations.

A non-invasive method for the assessment of gingival thickness in the aesthetic zone and the concept of the gingival geometric ratio in an Asian population.

The aim of this study was to investigate the gingival thickness and biologic width in the aesthetic zone (maxillary central and lateral incisors) in an Asian population using cone beam computed tomography (CBCT) as a non-invasive measurement method, prior to immediate implant placement. The gingival geometric ratio is introduced as a new parameter for assessing soft tissue stability and hence predicting the aesthetic outcome. The gingival thickness, biologic width category (normal, high, and low crest), and gingival geometric ratio (shape and configuration of the gingival tissues) were assessed for 171 central and 175 lateral incisors on high-resolution CBCT images.

A Study of Human Mandibles of Indian Origin for Available Bone After Bone Reduction for Trefoil Concept: A In-Vitro Human Cadaver Mandible Study.

Introduction: Edentulism is closely associated with socioeconomic factors and is more prevalent in poor populations and in women. Gender plays an important role in Residual bone resorption, where a greater bone resorption was reported in women than men. Novum is re-introduced as Trefoil which has been rectifying the technical deficiencies of novum using engineering and clinical technology.

Round and flat zygomatic implants: effectiveness after a 1-year follow-up non-interventional study.

Introduction: There are few zygomatic implants (ZI) designs available. The objective of this non-interventional study was to report the effectiveness of two new site-specific ZI, selected and placed following the zygoma anatomy-guided approach (ZAGA).

Materials And Methods: Consecutive patients presenting indications for rehabilitation using ZI were treated according to ZAGA Concept recommendations.

Comparative Evaluation of Occlusal Bite Force in Relation to the Muscle Activity in the Mixed Dentition Children of Age Group 9-12 Years: A T-scan Analysis.

Aim And Objective: Compare and evaluate the muscle activity and the occlusal force between the mixed dentition boys and girls of 9-12 years.

Materials And Methods: The study included 15 boys and 15 girls. The occlusal force and activity of the masseter and temporalis muscle were measured with a T-scan device using a sensor, a module to transmit the signals to a computer and the complete data of the bite force and muscle activity with the EMG recordings and data were collected and evaluated.

Computer-guided implant placement associated with computer-aided bone regeneration in the treatment of atrophied partially edentulous alveolar ridges: A proof-of-concept study.

Background/purpose: The existing literature lacks information regarding the use of digital workflows during pre-surgical planning of implant rehabilitations in resorbed edentulous ridges. Thus, the aim was to evaluate the effectiveness of computer-guided implant placement and simultaneous computer-aided guided bone regeneration (GBR) in the treatment of atrophic posterior alveolar ridges.

Materials And Methods: Partially edentulous patients requiring GBR simultaneously to implant insertion were enrolled.

CONE BEAM CT IN DENTAL IMPLANT PLANNING: HOW CLOSE ARE PATIENT DOSIMETRY RESULTS WITH DATA FROM PHANTOM STUDIES FOUND IN LITERATURE?

Advantages of Cone Beam Computed Tomography (CBCT) include high-quality 3D imaging and reduced radiation exposure with relatively low cost. In this study, patient radiation exposure in CBCT implant planning dentistry was measured in terms of Kerma Area Product (KAP). Data were obtained from 217 CBCT scans on 168 individuals using a CS9300 Carestream system.

Robotics in Dental Implantology.

Robotic surgery is no longer a fiction and its clinical applications are rapidly developing. Robotic surgery is increasingly used because of its minimal invasiveness. This article provides an overview of robotic surgery and its current applications in oral and maxillofacial surgery and implant dentistry.

European Association for Osseointegration Delphi study on the trends in Implant Dentistry in Europe for the year 2030.

Objectives: To assess the potential trends for the year 2030 in dental implant dentistry in Europe using the Delphi methodology.

Material And Methods: A steering committee and a management team of experts in implant dentistry were created and validated a questionnaire including 60 questions, divided in eight topics. The survey was conducted in two rounds using an anonymous questionnaire, which provided the participants in the second round with the results of the first.

"Simpli5y" a noval concept for fixed rehabilitation of completely edentulous maxillary and mandibular edentulous arches: A 3-year randomized clinical trial, supported by a numerical analysis.

Background And Purpose: To evaluate the clinical outcome of "simpli5y" concept where in 3 and 2 implant placed cross arch in maxilla and in mandible respectively, restored with screw retained prosthesis.

Materials And Methods: Total of 30 patients were randomized, with 15 in group1 with an average of 45 Ncm insertion torque with delayed loading and 15 in group 2 with above 65 Ncm inertion torque with immediate loading with equal number of male and female in each group following parallel design with 3 implants in maxillary and 2 implants in mandibular arch placed which was supported by a 3Dimensional finite analysis comparing the stress dissipation around implants of this concept-"Simplif5y" with All-on-4 concept.

Results: Von Mises strain recorded in the bone in the maxillary and mandibular arch models were higher in All-on-four than that in the "simpli5y", which was vice-versa in the framework.

Hybrid framework with cobalt-chromium alloy and gold cylinder for implant superstructure: Bond strength and corrosion resistance.

Purpose: The aim of this in vitro study was to evaluate tensile bond strengths and corrosion resistance of CoCr alloys joined with gold cylinder by a soldering system in comparison with the conventional cast-joining system.

Methods: CoCr alloys joined with gold cylinder by a soldering system using a high-fusing gold solder (CoCr/Solder/Gold cylinder), gold alloy joined with gold cylinder by a cast joining system (Gold alloy/Gold cylinder) and CoCr castings were fabricated. The tensile bond strength and corrosion resistance in 0.

The antibiotic of choice determined by antibiogram in maxillary sinus elevation surgery: a clinical study.

Objectives: This study set out to make antibiograms of positive bacteria cultures in samples collected when performing maxillary sinus elevations to determine a specific and effective antibiotic in each case.

Material And Methods: A total of 174 patients (90 women and 84 men) with a mean age of 55.92 years underwent 227 sinus elevations.

Heat generated by dental implant drills during osteotomy-a review: heat generated by dental implant drills.

Statement Of Problem: Osseointegration is the more stable situation and results in a high success rate of dental implants. Heat generation during rotary cutting is one of the important factors influencing the development of osseointegration.

Purpose: To assess the various factors related to implant drills responsible for heat generation during osteotomy.

Maxillary posterior bone height in relation to maxillary sinus floor in Indian dentulous population.

To establish a ratio of variable bone height (Infrazygomatic alveolar crest height) to constant bone height (Infraorbital zygomatic height) and, to estimate the relative sinus floor position from alveolar crest of maxillary first molar region of dentulous Indian males and females, using Digital panoramic radiographs. Panoramic radiographs of 74 patients were included in the study (37 male, 37 female) to measure maxillary posterior vertical bone height and their ratio in dentulous patients. Measurements were made from reference lines drawn from anatomic landmarks on soft digital versions of standardized panoramic radiographs using Kodak dental imaging software.

Histological evaluation of bone formation adjacent to dental implants with a novel apical chamber design: preliminary data in the rabbit model.

Background: Wound healing events after implant placement will vary according to the extent of the necrotic zone.

Purpose: The goal of the present study was to evaluate bone healing around titanium implants with a novel apical chamber design.

Materials And Methods: Titanium implants grade 4 were turned with different apex design.

Accuracy of impressions with different impression materials in angulated implants.

Purpose: To evaluate the dimensional accuracy of the resultant (duplicative) casts made from two different impression materials (polyvinyl siloxane and polyether) in parallel and angulated implants.

Materials And Methods: Three definitive master casts (control groups) were fabricated in dental stone with three implants, placed at equi-distance. In first group (control), all three implants were placed parallel to each other and perpendicular to the plane of the cast.

Rehabilitation of recurrent unicystic ameloblastoma using distraction osteogenesis and dental implants.

Ameloblastoma is a true neoplasm of odontogenic epithelial origin. Surgical resection of the ameloblastoma is well-documented and an accepted treatment modality. Vertical distraction of the alveolar process is an efficient method for augmentation.

Clinical efficacy of a xenogeneic collagen matrix in augmenting keratinized mucosa around implants: a randomized controlled prospective clinical trial.

Aim: The aim of this controlled randomized clinical trial was to evaluate the efficacy of a xenogeneic collagen matrix (CM) to augment the keratinized tissue around implants supporting prosthetic restorations at 6 months when compared with the standard treatment, the connective tissue autograft, CTG).

Materials And Methods: This randomized longitudinal parallel controlled clinical trial studied 24 patients with at least one location with minimal keratinized tissue (≤1 mm).

Main Outcome Measure: The 6-month width of keratinized tissue.

A new method to eliminate the risk of maxillary sinusitis with zygomatic implants.

Purpose: A new approach for zygomatic implant placement was proposed to eliminate the risk of maxillary sinusitis related to the procedure.

Materials And Methods: A prospective study of this new approach was conducted, and consecutive patients treated between June 2007 and December 2008 were included. An extended sinus lift with retained bone window was performed, such that zygomatic implants were placed completely outside the displaced maxillary sinuses.

Retrospective study on immediate functional loading of edentulous maxillas and mandibles with 690 implants, up to 71 months of follow-up.

Purpose: The aim of the present study was to describe immediate functional loading of completely edentulous maxillas and mandibles by fixed provisional prostheses and to compare cumulative survival rates between maxillas and mandibles. Contributing factors including implant diameter, system, configuration, type of abutment connections, position of implants, and insertion torque values were investigated.

Patients And Methods: From August 2001 to March 2007, 111 patients treated at the Associated Brånemark Osseointegration Center, Hong Kong, who received immediate functional loading of implants by fixed completely edentulous provisional prostheses were reviewed.

Zygomatic implants--protocol for immediate occlusal loading: a preliminary report.

Purpose: To investigate the modified protocol for immediate occlusal loading of the zygomatic implants and to report the preliminary results of this modified protocol.

Materials And Methods: Four male patients and 1 female patient with edentulous maxillae were consecutively treated with the zygomatic implants under general anesthesia. All 5 patients were examined by computed tomography and investigated by the SimPlant software (Materialise NV, Leuven, Belgium).

Zygomatic bone: anatomic bases for osseointegrated implant anchorage.

Purpose: The aim of the present study was to evaluate zygomatic bone thickness considering a possible relationship between this parameter and cephalic index (CI) for better use of CI in the implant placement technique.

Materials And Methods: CI was calculated for 60 dry Brazilian skulls. The zygomatic bones of the skulls were divided into 13 standardized sections for measurement.