Oral rehabilitation with unilateral zygomatic implants: A case series of 32 patients.

Aims: Zygomatic implants are successful alternatives to conventional dental implants for oral rehabilitation of patients with severely atrophic maxillae; however, the use of unilateral zygomatic implants needs to be studied further to validate their efficacy. The present investigation aimed to evaluate unilateral zygomatic implant placement in the oral rehabilitation of partially edentulous patients with extremely atrophic maxillary bone and/or previous implant failures.

Materials And Methods: This retrospective clinical study included patients with partially edentulous maxillae who underwent unilateral zygomatic implant insertion.

Finding Better Ways to Perform Graftless Full Rehabilitation of a Compromised Maxilla: New Platform-Switched Zygomatic Implants Placed Extra-Sinus Improve Prosthetic Restoration-A Preliminary Study of 25 Cases and 85 Implants.

Standard treatment for full rehabilitation of compromised maxillae with regular implants includes sinus elevation grafting, a minimum of two to three surgeries, and a minimum treatment time of 9 to 15 months. Zygomatic implants are a viable alternative. However, prosthetic restorations have been compromised due to abutments emerging on the palate.

A Clinical and Radiographic Evaluation of Zirconia Dental Implants: 10-Year Follow-Up.

Purpose: The aim is to evaluate the survival and success rates, as well as the marginal bone loss (MBL) and periodontal indexes, of zirconia implants with 10-year follow-up.

Materials And Methods: 10 patients were selected and 26 one-piece zirconia implants were used for the rehabilitation of single tooth or partially edentulous ridge. After 10 years, a clinical-radiographic evaluation was performed in order to estimate peri-implant tissue health and marginal bone loss.

A Possible Relationship between Peri-Implantitis, Titanium Hypersensitivity, and External Tooth Resorption: Metal-Free Alternative to Titanium Implants.

Titanium dental implant surface does not remain unaltered but may corrode and release ions or particles which trigger soft and hard tissue damage. Titanium may induce clinically relevant hypersensitivity in patients chronically exposed. A 56-year-old female patient presented peri-implantitis around a single titanium implant positioned three years earlier.

Extrasinus Zygomatic Implants for the Immediate Rehabilitation of the Atrophic Maxilla: 1-Year Postloading Results From a Multicenter Prospective Cohort Study.

Purpose: The use of zygomatic implants is an alternative to major grafting procedures for the treatment of the atrophic posterior maxilla. However, only few studies reported solid and correct data about the use of extrasinus zygomatic implants. Starting from these considerations, this study aims to investigate the 1-year survival and success rates of extrasinus zygomatic implants immediately loaded in patients with severe atrophy of the posterior maxilla.

Trefoil System for the Treatment of Mandibular Edentulism: A Case Report with 30 Months Follow-Up.

The purpose of this work is to describe a clinical case of full-arch mandible rehabilitation with a fixed prosthesis on three implants. The chosen protocol is the Trefoil system by Nobel (Nobel Biocare, Zurich, Switzerland) that allows to realize a mandibular fixed rehabilitation on three particularly designed fixtures through the use of prefabricated surgical guides and a preassembled bar on which the prosthesis is built. Both surgical and prosthetic procedures were completed without complications, and after 30 months, the rehabilitations are in good health conditions.

Classification of Sinus Membrane Perforations Occurring During Transcrestal Sinus Floor Elevation and Related Treatment.

The predictability of transcrestal sinus floor elevation (tSFE) in elevating the sinus membrane following posterior maxillary ridge resorption has been widely demonstrated. To minimize complications and increase success, a literature search was conducted to validate procedures used for tSFE. A decision tree based upon timing of perforations was then developed to improve membrane-perforation management during the procedure.

Analysis of Forces Applied During Transalveolar Sinus Lift: A Preliminary Clinical Study.

Purpose: To introduce a novel modality that enables the measurement of forces applied during a transalveolar sinus floor elevation (tSFE) and to investigate the influence of anatomical and surgical factors on the necessitated force in sinus membrane detachment.

Material And Methods: A new endosinus probe, innovated with a calibrated load cell, was used to test the forces needed to perforate ten maxillary sinuses in 5 human cadavers. The same probe was also used to detach the Schneiderian membrane from the bony floor of 21 human subjects undergoing tSFE.

Sinus presurgical evaluation: a literature review and a new classification proposal.

Introduction: Presurgical evaluation with cone beam computed tomography (CBCT) or computed tomography (CT) has become an essential tool for diagnosis and surgical planning, including maxillary sinus floor elevation. Before performing a sinus lift, the clinician's attention should not be only directed to the patency of the ostium through CBCT or CT, because many anatomical features could influence the surgical approach of sinus floor elevation. The goal of this article was to facilitate the communication between clinicians regarding the type of maxillary sinus, encourage in-depth analysis prior to surgery and reduce the risk of complications due to possible underestimation of important parameters.

Incidence and characteristics of mandibular accessory canals: A radiographic investigation.

Aim: The aim of the present study was to explore, through tridimensional reconstructions of cone-beam computed tomography (CBCT) scans, the presence and the characteristics of mandibular accessory canals.

Methods: For each included participant, the presence of accessory canals was recorded. The diameter of the canal, as well as the distance between the canal walls and the walls of the mandibular bone (lingual, buccal, cranial and caudal), were measured and recorded.

CBCT evaluation of the tridimensional relationship between impacted lower third molar and the inferior alveolar nerve position.

Background: The aim of this study is to evaluate if the statistical significant relations between the measures taken exists or not and to show how the 3D reconstruction could be help the oral surgeon in all those instances in which it may have a direct impact on the planning of the surgical steps.

Methods: Thanks to use of NobelClinician™ Software it was possible to analyze 200 mandibular tomography computerized, random selected, and create a 3D reconstruction of mandibular bone, point out dental structure of wisdom tooth and the way of IAN. Statistical analysis was performed using the Statistical Package for Social Sciences.

Infection Related Inferior Alveolar Nerve Paresthesia in the Lower Premolar Teeth.

Introduction. The aim of this paper was to describe two cases of IAN infection-induced paresthesia and to discuss the most appropriate treatment solutions. Methods.

Microbiological analysis of bacterial plaque on three different threads in oral surgery.

Background: Suture is the final act of most oral surgery procedures. The quality of healing after the operation depends on its efficiency. Sutures must not cause inflammation - neither directly nor indirectly.

Long-Term Retrospective Evaluation of Dental Implants Placed in Resorbed Jaws Reconstructed With Appositional Fresh-Frozen Bone Allografts.

Introduction: The aim of this study was to evaluate the outcome of fresh-frozen bone allografts in preprosthetic surgery for implant placement purposes.

Materials And Methods: The cohort comprised 45 patients treated with fresh-frozen bone block grafts and dental implants. Clinical and radiological evaluations were performed to evaluate the survival rate.

Crestal sinus lift by using a mini-invasive procedure: a case series.

Background: The aim of this study was to present a case series treated with an atraumatic procedure for maxillary sinus lift by crestal approach. This technique avoids the use of classical osteotomes, thus decreasing complications due to percussive and vibratory forces.

Methods: Three cases of partial edentulism in the distal maxillae with inadequate bone volume are treated by using SinCrest procedure (Meta, Reggio Emilia, Italy).

Zirconia Implants in Esthetic Areas: 4-Year Follow-Up Evaluation Study.

Objectives. The aim is to evaluate the survival and success rates, as well as the marginal bone loss (MBL) and periodontal indexes of zirconia implants positioned in the esthetic jaw areas. Materials and Method.

Poly-D-L-Lactic Acid Membranes for Bone Regeneration.

Purpose: To histologically and histomorphometrically evaluate the biocompatibility and the biological properties of perforated and nonperforated poly-D-L-lactic acid (PDLLA) resorbable membranes, using a model of calvarial monocortical bone defects in domestic pigs.

Methods: A total of 6 10 × 10 × 10  mm circular calvarial bone defects were prepared in each of the 3 adult female large white domestic pigs and assigned to the following experimental groups: negative control, nonperforated membrane only, perforated membrane only, bone only, bone + nonperforated membrane, and bone + perforated membrane. The PDLLA membranes were fixed by PDLLA pins by means of an ultrasonic device.

Maxillary Sinus Septa and Anatomic Correlation With the Schneiderian Membrane.

Aim of this investigation is to evaluate prevalence, localization, and height of 114 maxillary sinus septa by using cone-beam computed tomography scans. The thickness of the mucosa has been measured together with the variations of the membrane in relation to those septa. A total of 228 maxillary sinuses have been considered.

Odontogenic keratocyst mimicking paradental cyst.

Objective. The aim of this paper is to present an uncommon clinical and radiographic aspect of odontogenic keratocyst (OKC) mimicking paradental cyst. Methods.

Inlay-retained fixed dental prosthesis: a clinical option using monolithic zirconia.

DIFFERENT INDIRECT RESTORATIONS TO REPLACE A SINGLE MISSING TOOTH IN THE POSTERIOR REGION ARE AVAILABLE IN DENTISTRY: traditional full-coverage fixed dental prostheses (FDPs), implant-supported crowns (ISC), and inlay-retained FDPs (IRFDP). Resin bonded FDPs represent a minimally invasive procedure; preexisting fillings can minimize tooth structure removal and give retention to the IRFDP, transforming it into an ultraconservative option. New high strength zirconia ceramics, with their stiffness and high mechanical properties, could be considered a right choice for an IRFDP rehabilitation.

Esthetic rehabilitation of a severely compromised anterior area: combined periodontal and restorative approach.

The complete oral rehabilitation of patients demanding a beautiful and attractive smile involves a multidisciplinary approach that includes the change of both the morphological aspect of the teeth and the architecture of gum tissues. This clinical report describes a successful interdisciplinary approach for the treatment of an esthetically compromised dentition. In a first phase, the periodontal plastic surgery was performed for root coverage and, in particular, it was decided for the execution of a coronally advanced flap for the treatment of multiple recession defects.

Evaluation of postoperative discomfort after impacted mandibular third molar surgery using three different types of flap.

Objective: The surgical extraction of an impacted third molar involves a wide range of consequences such as trismus, swelling, and pain, as well as more significant complications, temporary or permanent, that can manifest altered sensitivity of the tongue or lips. The purpose of this prospective study was to evaluate the effects of three different flaps on postoperative discomfort considering trismus, edema, and pain, after the extraction of impacted third molars. The data derived from the analysis of the surgical trials performed at the Oral Surgery Unit, Department of Surgical, Reconstructive and Diagnostic Sciences, IRCCS Policlinico, University of Milan, directed by Professor F.

Sinus lift and transantral approach to root fragment removal.

The aim of this case report is to present a case of root fragment removal during planned sinus lift procedure. After failed molar tooth extraction, we chose to retrieve the residual root apex with transantral approach not to damage excessively bone volume. Without changing primary implant rehabilitation purpose, the fragment removal procedure was performed prior to implant placement during necessary sinus lift surgery.

Evaluation of the success criteria for zirconia dental implants: a four-year clinical and radiological study.

Objectives. The aim was to evaluate survival and success rates, soft tissue health, and radiographic marginal bone loss (MBL) of zirconia implants placed in the esthetic and posterior areas of the jaws and in association with multiple or single implant restorations after at least 6 months of definitive restoration. Material and Methods.