نتایج جستجو برای: orthodontic appliance design

تعداد نتایج: 979014  

2017
Nenad Nedeljkovic

Class II malocclusions are common orthodontic irregularities (they account for 27% of all orthodontic irregularities) and they are considered a major reason for consulting an orthodontist. The positive outcome of Class II malocclusion treatment has some significant advantages: the prevention of traumatic injuries of upper incisors associated with large overjet and hard palate injuries with lowe...

Journal: :Journal of clinical orthodontics : JCO 2015
Sanjeev Verma Deepak Kumar Gupta Gurinder Singh Shruti Mittal

Fig. 1 A. 25-year-old male patient with mesially tipped upper right second molar before treatment. B. After removal of lower left third molar. molar uprighting.6 Although early mechanics tended to cause molar extrusion or premolar intrusion, more recently developed springs can upright molars without these undesirable side effects.7,8 The need for simpler appliances to manage relatively limited ...

Journal: :The journal of contemporary dental practice 2010
Karla Magalhães Alves Daniela Goursand Elton Gonçalves Zenobio Roberval Almeida Cruz

AIM Assess the effectiveness of chemical-mechanical control associated with orientation and motivation for the control of dental biofilm in orthodontic patients. METHODS AND MATERIALS Thirty patients between 12 and 21 years of age wearing a fixed orthodontic appliance were divided into three groups. The control group (G1) received orientation regarding oral hygiene. The experimental groups (G...

Journal: :European journal of orthodontics 2013
Melissa Grant Jay Wilson Peter Rock Iain Chapple

This controlled longitudinal intervention study investigated changes in cytokines and biomarkers of bone and tissue metabolism within gingival crevicular fluid (GCF) from patients undergoing orthodontic treatment. GCF was collected on Periopaper™ strips (Oraflow Inc., USA) from 20 volunteers at baseline, before tooth extraction and appliance placement and then at intervals during orthodontic tr...

Journal: :Iranian Journal of Orthodontics 2020

Journal: :American Journal of Orthodontics and Dentofacial Orthopedics 2010

2017
Marco Portelli Angela Militi Gabriele Cervino Floriana Lauritano Sergio Sambataro Alberto Mainardi Riccardo Nucera

OBJECTIVE Oxidative stress is a pathologic event induced by a prevalence of oxidant agents on the antioxidant ones, with a consequent alteration of oxide-reducing balance. INTRODUCTION Freeradicals produce damages both in cellular and extra-cellular components; phospholipid membranes, proteins, mitochondrial and nuclear DNA, are the target of the oxidative stress, that can finally cause cellu...

2016
Chetankumar O Agarwal Ketan K Vakil Avinash Mahamuni Pawankumar Dnyandeo Tekale Prasad V Gayake Jeegar K Vakil

BACKGROUND An important constituent of an orthodontic appliance is orthodontic brackets. It is either the bracket or the archwire that slides through the bracket slot, during sliding mechanics. Overcoming the friction between the two surfaces demands an important consideration in an appliance design. The present study investigated the surface roughness of four different commercially available s...

Journal: :The Angle orthodontist 2010
Padhraig S Fleming Ama Johal

OBJECTIVE To evaluate the clinical differences in relation to the use of self-ligating brackets in orthodontics. MATERIALS AND METHODS Electronic databases were searched; no restrictions relating to publication status or language of publication were applied. Randomized controlled trials (RCTs) and controlled clinical trials (CCTs) investigating the influence of bracket type on alignment effic...

2009
Ilpo Pietilä Terttu Pietilä Juha Varrela Pertti Pirttiniemi Pentti Alanen

The study maps out orthodontic care in Finnish municipal health centres in 2001, describes changes during the previous ten years reported by chief dental officers, and assesses the views of orthodontists on current public orthodontic services. The data were collected by questionnaires sent to all health centres and all orthodontists in Finland. Of all 0-18-year-olds, 11% were receiving orthodon...

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