View clinical trials related to Jaw, Edentulous.
Filter by:Patients with an edentulous mandible restored with implants who have participated in the core study CR 04/07 will be recruited for this extension study. No further interventions will be made for this extension study other than a clinical follow-up examination and questionnaires. Patients will not receive an investigational treatment in this study. Patients will be followed at 5 to 10 years from the date of the original implant loading
Purpose: The aim of this study was to analyze the clinical and radiographic outcomes of 23 edentulous jaws treated with 3D software planning, guided surgery, immediate loading and restored with Cad-Cam Zirconia and titanium full arch frameworks. Material & methods: This study was designed as a prospective clinical trial. Twenty patients have been consecutively rehabilitated with an immediately loaded implant supported fixed full prosthesis. A total of 120 fixtures supporting 23 bridges (8 mandible, 15 maxilla) were placed , 22 of which in fresh post extraction sockets. All the implants were inserted with an insertion torque of 35/45 Ncm. 117 out of 120 implants were immediately loaded the other 3 were delayed loaded. Outcome measures were implants survival, radiographic marginal bone-levels and bone remodeling, soft tissue parameters and complications.
The primary objective of this study is to demonstrate non-inferiority of the Straumann Bone Level Ø 3.3 mm NC SLActive Roxolid Implants compared to Straumann Bone Level Ø 4.1 mm RC SLActive Roxolid Implants based on mean crestal bone level changes measured between surgery and 12 months post-implant placement. The secondary objectives will assess differences in clinical outcomes between the test and control implants, including implant success and survival, gingival recession, subject satisfaction and additional early bone level measurements.
The purpose of this study is to determine which implant-abutment design is more likely to promote early soft-tissue healing processes and/or will enhance longitudinal peri-implant bone and soft-tissue health.
The study will compare initial peri-implant bone healing and longitudinal osseointegration between a fully microtextured dental implant and an analogous implant with a smooth machined collar. The investigators hypothesize the fully textured implant will result in less peri-implant crestal bone resorption than the implant with a machined collar.
40 consecutive adult patients, requiring the insertion of dental implants in the aesthetic area (from second premolar to second premolar) will be enrolled in the study. At the time of surgery, a full thickness flap will be elevated, the implant bed will be prepared according to the manufacturer's instruction and the implants will be then seated into the bone. T0 corresponds to the time of implant insertion, T1 to the time of healing abutment's connection (T0=T1 for single stage implants), and T2 corresponds to 1-year follow-up from healing abutment's connection. Cone Beam Computed Tomography (CBCT) scans will be taken immediately after abutment connection (T1) and 1-year after (T2). The midsagittal cut of each implant will be identified, and measurements will be made at predetermined levels. Horizontal facial bone thickness (HFBT) and Vertical facial bone level (VFBL) will be measured. HFBT will be measured at 0, 3, 6 and 9 mm apical to the implant platform. VFBL wil be the perpendicular distance from the implant platform to the most coronal point of the facial bone. Changes between T1 and T2 will be calculated.
The cobalt-chromium (CoCr) partial denture has been made for a long period. It respects biomechanical principles, providing harmony between mechanical and biological activities. The fundamental principles of biomechanics applied in the manufacture of steel structure are: retention, reciprocity, attachment and stability. To get the proper planning, we need to assess the dental support system, with its qualitative and quantitative values. But conventional dentures has a inherent problem which is the metallic elements apparent and in some cases the stiffness of the component support elements that generates stress. The Thermoplastic partial dentures increase aesthetics in replacement of metal structures in oral rehabilitation. So many treatments are being done in everyday practice without a defined concept on various aspects of its construction and oral applicability. This trial aims to assess the basic parameters of both dentures in: nutrition, speech therapy, chewing force, chewing efficiency and quality of life. 60 years old or older patients who require removable prosthesis. These will be randomly selected for the fabrication and installation of removable partial dentures (Gold Standard - control group - CoCr partial denture) and thermoplastic partial denture(experimental group). Before beginning the work, selected patients will make some preliminary tests such as controlling the individual condition, they are: - three questionnaires: - instrument for assessing quality of life related to oral health, GOHAI - General Oral Health Assessment Index of Atchinson & Dolan - instrument for assessing the social and economic profile of ABEP (Brazilian Association of Research Companies) CCEB 2011; - Instrument for assessing cognitive condition MINI-MENTAL; - Speech evaluation - Nutritional assessment; - Evaluation of masticatory efficiency and - Chewing strength. After preliminary assessments patients will be subjected to treatments for manufacture of partial dentures. After the installation (end of the technical construction of the dentures) and the adjustments appointment the tests will be repeated and in successive control periods of 3 months, 6 months, 12 months, 18 months and 24 months respectively, when the tests will do again now to see if there was a change in the initial condition.
Aim of the present study will be to evaluate if the platform switching and the flat abutment can modify the peri-implant marginal bone remodelling. A clinical assessment of the soft tissues will also be provided. 80 consecutively inserted dental implants will be included in this study. Maxillary and mandibular implants will be considered, both in frontal and posterior area. After 6 to 12 weeks, the definitive prosthetic abutment will be screwed and the temporary crown cemented. After 2 more months, the definitive porcelain crown will be delivered. The final outcomes will be collected after 1 year from implant insertion. Data will refer to the following timing: T0= implant installation T1= temporary crown cementation T2= definitive crown cementation T3= 1 year follow-up The 80 implants will be randomly divided into 4 groups of 20 implants each, with different implant/abutment design. Group 1: Tapered T3 Standard Collar implants + GingiHue abutments Group 2: Tapered T3 Standard Collar implants + Tissuemax IL abutments Group 3: Tapered T3 Prevail implants + GingiHue abutments Group 4: Tapered T3 Prevail implants + Tissuemax IL abutments On x-rays, the mesial and distal Marginal Bone Level will be measured and compared among and between the groups at the 4 different timing. Pocket Depth and Bleeding on probing (mesial, buccal, distal and lingual) will be measured at T0, T1, T2 and T3. Data will be statistically analyzed.
The aim of the study is to describe the changes found in C1 dental implants through their early healing period. Patients requiring a standard installation of one or two implants in the maxilla, without any need for bone augmentation, will be frequently followed for 90 days. In every meeting the implants' ISQ values (values denoting the implant stability as being measured by a dedicated, commercially available, appliance called 'Osstell'). The implants' measured ISQ values will be used to describe the changes that may be found in the implants' stability through their healing period. At the end of the study the patients will be referred to their treating doctor for the completion of implants' restoration (i.e. crown).
Objectives: To compare the stability of implant surface treated by dual acid etching (Porous)and implants with anodized surface (Vulcano) over a period of 16 weeks after installation. Methods: it will be a clinical study with individuals with missing teeth requiring rehabilitation with dental implants in the maxilla and that fulfill the study inclusion criteria. The research sites will be randomized into two groups: the control group patient's sites receive implant surface treated by dual acid (AR Torque Porous, Connection Implant Systems, Aruja, Brazil) and in the test group implants with anodized surface (AR Torque Vulcano-Actives, Connection Implant Systems, Aruja, Brazil). The evaluation of the stability of the implants will be made over 16 weeks, through resonance frequency analysis with Osstell (Integration Diagnostics AB, Gothenburg, Sweden). Data will be analyzed using descriptive statistics and comparative.