Purpose: To evaluate the correspondence between output from a new artificial intelligence tool (AIT) and clinician evaluation regarding the immediate loading suitability of dental implants based on insertion torque curves recorded during implant placement in an in vitro test. The secondary aim was to analyze peak insertion torque (PIT) and variable torque work (VTW) values of the implants.
Materials And Methods: The study was performed with four different densities of artificial bone blocks of solid rigid polyurethane without a cortical layer.
Int J Oral Maxillofac Implants
April 2023
To evaluate primary stability of a new dental implant design in low-density bone sites, compare it with another implant design previously studied in the same bone density, and explore possible correlations between primary stability parameters. The study was carried out on fresh humid bovine bone classified as type III. The test group consisted of 30 DS Prime Taper implants (PT), and the control group consisted of 30 Astra Tech EV implants (EV).
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
March 2017
Purpose: The aims of this study were to evaluate the ability of a stepped osteotomy to improve dental implant primary stability in low-density bone sites and to investigate possible correlations between primary stability parameters.
Materials And Methods: The study was performed on fresh humid bovine bone classified as type III. The test group consisted of 30 Astra Tech EV implants inserted following the protocol provided by the manufacturer.
Objectives: The aims of the present cross-sectional study are to evaluate the bone remodeling around Morse-cone implants placed subcrestally 1 year after loading and the prevalence of bone loss >0.5 mm after at least 3 years of loading.
Material And Methods: Subjects who underwent a radiographic check in 2013 with implants that had been in function for at least 3 years were considered for inclusion.
Purpose: The purpose of this present study was to investigate the relation between implant site underpreparation and primary stability in the presence of poor-quality bone.
Materials And Methods: A study was performed on fresh humid bovine bone; samples presented no cortical layer with a cancellous structure inside and were obtained from the hip. The bones were firmly attached to a base device.
Objectives: The aim of this study was to evaluate the primary stability of implants placed immediately after a sinus lift, compared with implants placed in the area treated with a sinus lift 6 months before.
Material And Methods: Patients with a residual bone height of at least 4 mm were treated with a 1-stage procedure (group A) and patients with a residual bone height < 4 mm with a 2-stage approach (group B). Sinus lift was always performed with 50% autogenous bone and 50% deproteinized bovine bone mineral.
Int J Periodontics Restorative Dent
September 2015
The purpose of this case series is to present radiographic results of implants immediately placed and restored with a definitive abutment and followed for 18 months. Ten patients who required extraction of the maxillary central or lateral incisor were treated with immediate extraction, implant placement, and provisionalization. Hard tissue measurements were performed using cone beam computed tomography.
View Article and Find Full Text PDFPurpose: The aim of this trial was to assess if the nonremoval of abutments placed at the time of surgery would improve bone and gingival healing around single immediately restored implants placed in postextraction sockets.
Materials And Methods: All patients received a single square-threaded tapered implant placed in postextraction sockets and immediately restored. All the implants were placed 2.
Objectives: The aim of this study was to radiographically assess the vertical and horizontal alterations of buccal alveolar bone after the insertion of a post-extractive implant using Bio-Oss(®) Collagen graft.
Material And Methods: The study was designed as a prospective study. Adult patients were eligible for the study if they needed one or more immediately inserted and immediately restored implant replacing teeth to be extracted within region 15-25.
Aim: The aim of this retrospective study is to assess the long-term buccal bone plate changes in cases of single implants in the maxillary aesthetic area placed and restored immediately after extraction.
Material And Methods: A private practice's database was reviewed to find patients who had a standard computed tomography (CT) scan taken no more than 24 hours after insertion of a single, immediately restored, postextractive implant in the anterior maxilla. After a minimum period of 7 years, a cone beam computed tomography (CBCT) was performed.
Clin Implant Dent Relat Res
October 2013
Purpose: The aims of the study are to introduce a new parameter to measure primary stability and to evaluate the possible correlations between this parameter and bone density, initial bone-to-implant contact (IBIC), Resonance Frequency Analysis (RFA), and peak insertion torque (IT).
Material And Methods: The study was performed on three different types of fresh humid bovine bone: type I, type II, and type III. A total of 90 XiVE implants (30 per bone type) were used; implant insertion was performed with a calibrated maximum torque of 70 Ncm at predetermined 30 rpm.
This report describes the treatment of a 13-year-old girl with unerupted maxillary permanent canines. It illustrates how recognizing an unexpected problem influenced the decision-making process. Despite 6 months of closed-eruption traction, the left canine had not erupted.
View Article and Find Full Text PDFClin Implant Dent Relat Res
May 2012
Objectives: The aim of the present study is to evaluate the osteointegration and crestal bone remodeling after 1 year around implants for intraoral welded immediate full-arch prosthesis inserted with low insertion torque (IT) values.
Material And Methods: The study was conducted from June 2008 to September 2010. Patients were eligible for the study if they needed an immediate intraoral welded implant-supported full-arch fixed prosthesis and received three or more implants with an IT ≤ 20 Ncm and two or more implants with IT ≥ 25 and ≤ 50.
Clin Implant Dent Relat Res
August 2012
Objectives: The aims of the present study are to evaluate the primary stability of a sample of 4,135 implants and to investigate the correlations between primary stability and mechanical characteristic of the implant and bone density at insertion time.
Material And Methods: The study was conducted from March 2002 to January 2009 at a private practice in Bologna (Italy). Patients were eligible for the study if they needed the insertion of single or multiple implants.
Int J Oral Maxillofac Implants
August 2010
Purpose: To evaluate the difference between the dental surgeon's perception of implant stability and the actual insertion torque and actual values obtained through resonance frequency analysis (RFA) during implant insertion surgery.
Materials And Methods: One hundred fifty-two patients who needed one or more dental implants were selected. A total of 514 Xive implants was inserted.
Purpose: To evaluate the influence of 2 different flap designs on periodontal healing and postoperative complications, after inferior third molar removal in young patients.
Patients And Methods: Twenty-four mandibular third molars were extracted from 12 patients with an average age of 16 years. Patients were included in the study when radiographs at the time of surgery showed that only the crown of the germ was formed.
Clin Implant Dent Relat Res
September 2009
Background: Maxillary sinus floor elevation surgery is widely used as a preimplantology method to permit implant insertion. Nevertheless, very few data are available about long-term stability of dental implants inserted in grafted sites.
Purpose: The aims of the present study were to evaluate the evolution of resonance frequency analysis (RFA) values at 6 and 12 months from the implant insertion in sinus grafted sites and nongrafted sites.
Background: The immediate loading technique requires a high primary stability. Resonance frequency analysis (RFA) has been proposed to assess this stability with a quantitative method.
Purpose: The aim of the present study was to evaluate if a good primary stability could be achieved in sites that had undergone a sinus augmentation procedure and also to evaluate the importance of different clinical factors in the determination of resonance frequency values at implant insertion.
Background: Data from cross-sectional studies revealed that gingival recession commonly occurred in subjects with a good standard of oral hygiene, but very little has been reported about longitudinal changes in the presence and extent of gingival recession in a similar sample of the population. The aim of this study was to follow up on the evolution of gingival recession at buccal tooth surfaces in a student population attending the fifth year at Bologna University Dental School who had been examined in a study 5 years earlier.
Methods: The clinical examination involved assessment of the number of buccal surfaces with plaque and buccal gingival recession.