نتایج جستجو برای: quantity of maxillary bone

تعداد نتایج: 21201773  

Amin Rahpeyma, Hamidreza Azimi Saeedeh khajehahmadi Vahid Reza Hosseini

Introduction: Coverage of bone grafts is very important in reconstructive surgery. In edentulous alveolar ridges this coverage is particularly important for supporting dental prostheses. Here we present the case of a patient with a large deficient maxillary anterior region that was reconstructed with a bilateral palatal submucosal periosteal connective tissue flap: a soft tissue reserve for up...

Journal: :journal of dentistry, tehran university of medical sciences 0
mohsen dalband assistant professor, dental research center, department of oral and maxillofacial surgery, faculty of dentistry, hamadan university of medical sciences, hamadan, iran jamal kashani phd in mechanical engineering hadi hashemzehi assistant professor, department of oral and maxillofacial surgery, faculty of dentistry, zahedan university of medical sciences, zahedan, iran

o bjectives: the aim of this study was to investigate the displacement and stress distri- bution during surgically assisted rapid maxillary expansion under different surgical conditions with tooth- and bone-borne devices. materials and methods: three-dimensional (3d) finite element model of a maxilla was constructed and an expansion force of 100 n was applied to the left and right molars and pr...

Amin Rahpeyma

Background  Many biomaterials are used during the open sinus lift surgery, beneath the elevated scheniderian membrane and maxillary sinus bony floor but the search for Ideal material continues. Methods  In the maxillary posterior atrophic ridges with the bone height less than four millimeters the open sinus lift surgery performed. The autologous Platelet-rich plasma (PRF) was used as the sol...

2017
Manawar Ahmad Hina Naim Dhanasekar Balakrishnan Aparna Narayan Abdullah Meshni

The placement of implants in a prosthetically driven position depends on the quantity and quality of available bone especially in the anterior region of maxilla. Implant placement and its restoration becomes clinically challenging when the alveolar ridge lacks sufficient bone volume. Additional surgical procedures are required to augment the bone deficiency in such clinical situations. Advanced...

Journal: :journal of dental research, dental clinics, dental prospects 0
fariba saleh saber associate professor of prosthodontics department of tehran dental faculty shima ghasemi assistant professor of prosthodontics department of tabriz dental faculty rodabeh koodaryan assistant professor of prosthodontics department of tabriz dental faculty amirreza babaloo assistant professor of periodontics department of tabriz dental faculty nader abolfazli assistant professor of periodontics department of tabriz dental faculty

background and aims. all-on-four technique involves the use of tilted implants to allow for shorter cantilevers. this finite element analysis aimed at investigating the amount and distribution of stress in maxillary bone surrounding the implants with all-on-four vs. frequently used method with six implants technique using different numbers and inclination angles. materials and methods. a 3d ede...

E Jalalian, S Koosha, S Safari, S Zandrahimi,

Background and Aim: Dental implants with angled abutments are often inserted in the anterior maxillary region due to the status of the residual ridge and aesthetic considerations. The purpose of this study was to assess stress and strain distributions in the premaxillary bone around dental implants by means of finite element analysis (FEA). Materials and Methods: Four three-dimensional (3D) fi...

Journal: :Journal of periodontology 2012
Marjan Ghassemian Hessam Nowzari Carlo Lajolo Fernando Verdugo Tommaso Pirronti Antonio D'Addona

BACKGROUND A facial bone (<2 mm) overlying maxillary anterior teeth may be prone to resorptive processes after extraction and immediate implant placement. A thin bone contributes to risk of bone fenestration, dehiscence, and soft-tissue recession. This study measures the distance between the cemento-enamel junction (CEJ) and alveolar bone crest and the thickness of facial alveolar bone at point...

2016
Ramesh Ram Fry Dinesh Chand Patidar Samta Goyal Aayush Malhotra

AIM The study aimed to investigate the proximity of maxillary posterior teeth roots to maxillary sinus and measure the distance of maxillary posterior teeth roots and the sinus floor as well as the thickness of bone between the roots and alveolar cortical bone using Denta scan®. MATERIALS AND METHODS The study samples include Denta scan® images of fifty patients with normally erupted bilatera...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2014
Matthew D McBride Phillip M Campbell Lynne A Opperman Paul C Dechow Peter H Buschang

INTRODUCTION The purpose of this study was to determine how the amount of surgical insult affects the quantity and maturity of dentoalveolar bone around teeth that have been orthodontically moved. METHODS A split-mouth design with 8 foxhound dogs was used to evaluate bone surrounding maxillary second premolars that were protracted for 15 days and retained for 7 weeks. The maxillary first prem...

Journal: :Head & Face Medicine 2008
Joël Ferri Jean-Pascal Dujoncquoy José Mario Carneiro Gwénael Raoul

BACKGROUND The purpose of the present study was to evaluate different types of maxillary pre-prosthetic surgery using autogenous bone graft and suggest a guideline for maxillary reconstruction to place implant. METHODS 181 patients (125 females and 56 males), age range from 16 to 76 years old, were operated at the Maxillo-Facial Service of the Lille's 2 Universitary Hospital Center (Chairman ...

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