The latest medical research on Orthodontics

The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about orthodontics gathered by our medical AI research bot.

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Impact of contracted endodontic cavities on instrumentation efficacy-A systematic review.

Australian Endodontic Journal

The aim of the present systematic review was to summarise and evaluate the studies comparing the role of contracted endodontic cavities (CECs) and ...

Assessment of depth of penetration and antibiofilm properties of Boswellia sacra compared with calcium hydroxide intracanal medicament (in vitro study).

Australian Endodontic Journal

Successful endodontic treatment requires advanced materials to eliminate biofilm This study aims to assess the penetration depth and the effectiven...

Evaluation of irrigant extrusion following the use of different root canal irrigation techniques: A systematic review and meta-analysis.

Australian Endodontic Journal

This systematic review investigates whether different irrigation techniques have different effects on irrigant extrusion from mature tooth apices. ...

XP-endo Finisher effectively reduces hard-tissue debris accumulated in root canals with isthmus after preparation with a reciprocating file system.

Australian Endodontic Journal

This study compared the accumulated hard-tissue debris (AHTD) after preparation with WaveOne Gold (WOG) to XP-endo Shaper (XPS), without and with a...

Ageing-related effects of dye penetration in the apical 5 mm mesiobuccal and mesial roots of molars.

Australian Endodontic Journal

This study examined how the tubular permeability in the apical 5 mm of mesial roots was affected by age, direction, distance from root apex, canal ...

Successful management of gingival recession with interdental attachment loss using gingival unit grafts.

Journal of Indian Society of

Gingival recession leads to root surface exposure devoid of periodontal attachment. Recession defects with interdental attachment loss (RT2, RT3), further increase the avascular area which is critical for survival of soft-tissue grafts. Nonsubmerged grafts such as free gingival grafts and gingival unit grafts (GUGs) rely primarily on plasmatic circulation from the recipient area during the initial stages of healing for its survival.

Nineteen isolated RT2 recession defects, in the mandibular anterior region, were treated using GUG. The clinical parameters of recession depth (RD), recession width (RW), interdental clinical attachment levels (iCAL) were measured at baseline. Percentage of mean root coverage (MRC) was calculated at 3 months and 6 months.

The percentage of mean root coverage (MRC) achieved at the end of 6 months was 81.79% ± 6.16%. Further, Simple linear regression analysis to predict MRC at 6 months using baseline RW revealed, for every 1 mm decrease in RW, the percentage of root coverage significantly increased by 5.25% (P = 0.04).

GUG can be used as an alternative treatment modality to achieve successful root coverage in RT2 recession defects. Baseline RW can be used to predict the outcome of root coverage at the end of 6 months.

Natural teeth and implant-retained prosthesis in treated periodontitis subjects.

Journal of Indian Society of

History of periodontal disease is a risk factor for the development of peri-implantitis. Implant treatment in susceptible patients should be follow...

Effects of traditional and novel proteolytic agents on tissue dissolution and dentine microhardness.

Australian Endodontic Journal

The study aimed to evaluate the tissue-dissolving ability of papain and bromelain with respect to that of sodium hypochlorite (NaOCl) at the temper...

Tooth loss and oral health-related quality of life among adult dental patients: A cross-sectional study.

Indian Journal of Dental Research

Oral diseases seriously impair the quality of life (QoL) in a large number of individuals and they may affect various aspects of life.

To determine the relationship between tooth loss and oral health-related quality of life (OHRQoL) among adult dental patients.

A cross-sectional study was carried out among 296 adult dental patients aged 35-44 years attending Department of Oral Medicine and Radiology of Panineeya Institute of Dental Sciences and Hospital, Hyderabad, India.

Oral Health Impact Profile-14 (OHIP-14) was used to assess OHRQoL. Dentition status and periodontal status according to WHO criteria 2013 and position, number of teeth lost by Batista et al. (2014) tooth loss classification were assessed.

Mann-Whitney U test and analysis of variance were used to find prevalence and severity of OHIP-14 with tooth loss and logistic regression analysis to evaluate the association between OHIP-14 prevalence and severity based on variables.

Except for the subjects with history of previous dental visit, variables such as gender and reason for dental visit showed significant difference (P ≤ 0.05) with tooth loss. Males subjects, who visited dentist with a history of pain, presence of periodontal disease and tooth loss up to 12 teeth (score 3) emerged as significant predictors for OHIP-14 prevalence (OR = 6.7, OR = 1.13, OR = 3.31).

The study strongly evidenced that number and position of tooth loss had negative impacts on OHRQoL.

Substance use and oral health sensations among substance users residing in rehabilitation centres in an Indian City.

Indian Journal of Dental Research

The term substance is usually used to address psychoactive/psychotropic drugs which include both licit and illicit drugs. These substances have varied consequences, including long-term and short-term effects, which include sensations post-consumption.

To determine patterns of substance use and short-term oral health effects among substance users.

A self-administered questionnaire-based study was conducted on the inmates of drug deaddiction and rehabilitation centres in Bhubaneswar city.

All the subjects were males and majority (60.6%) were polydrug users. Alcohol (87.3%) was the most commonly used substance, followed by ganja (57%), bhang (35.3%) and brown sugar (33%). A wide range of oral health sensations like dryness of mouth, taste change, numbness in mouth, feeling like chewing something, loose teeth and stammering/difficulty in speaking were found to be significantly associated with substance use. The age of start of substance use (P < 0.0001), socioeconomic status (P = 0.026) and marital status (P < 0.0001) were significantly associated with the pattern of substance use. About 37.6% of inmates felt that they had very good oral health before starting drug use, while only 15.4% described their oral health as very good at present. Having no oral health problem was the most common reason for not visiting a dentist, followed by ignorant attitude towards oral health.

A wide range of oral health sensations were found to be caused due to substance use. Understanding of oral health sensations can aid practitioners detect and report cases of substance use in its early phase.

Root canal morphology of primary molars - A cone beam computed tomography (CBCT) study.

Indian Journal of Dental Research

To evaluate the root and canal morphology of primary maxillary and mandibular molars in an Indian population using cone-beam computed tomography (CBCT).

A retrospective cross-sectional study was performed, where CBCT scans of children less than 10 years of age taken for valid diagnostic purposes previously were considered and images were analyzed. The number of roots, root canals, and variations in morphology were recorded. Left-right symmetry was also noted.

A total of 433 deciduous maxillary and mandibular primary molars were studied. It was observed that two separate roots with three separate canals were common in primary mandibular first molars, whereas two separate roots with two canals in each root were common in mandibular second primary molars. In primary maxillary molars, three separate roots with one canal each were the most common. Maxillary first molars (17.21%) and 17.35% second molars had fused distobuccal and palatal roots. It was observed that primary maxillary molars showed more left-right symmetry (86.7% in first molars and 82.7% in second molars) compared to primary mandibular molars (54.05% in first molars and 68% in second molars).

It was concluded that in both primary maxillary first and second molars, three separate roots, a mesiobuccal root, a distobuccal root, and a palatal root with one canal in each root, were the most common. Two separate roots with three separate canals were the most common in primary mandibular first molars, whereas two separate roots with two canals each in both roots were more common in mandibular second primary molars.

Salivary tumor necrosis factor-Alpha and malondialdehyde levels in children with class II malocclusion and sleep disorders: An evaluative study.

Indian Journal of Dental Research

Recently biomarkers for sleep disorders have provided an alternative and convenient means of diagnosis for children at risk.

To evaluate salivary TNF-α and Malondialdehyde (MDA) levels in children with skeletal class II malocclusion and with a positive history of sleep disorders.

This prospective evaluative study was carried out from October 2020 to March 2021, in the Department of Pediatric and Preventive Dentistry.

21 children aged 8-12 years with skeletal class II malocclusion and at least one sleep disorder participated in the study (Group 1). 21 age and gender matched children with no skeletal malocclusion and no reported history of sleep disorders served as a comparison group (Group 2). All children were evaluated regarding their sleep history and clinically examined to determine craniofacial morphology. Unstimulated saliva was collected from all children. Salivary TNF-α was measured with a solid-phase sandwich ELISA. Salivary MDA was measured by using TBA reagent.

Intergroup comparison for age and normally distributed data was done using t-test. Comparison of frequencies of categories of variables was done using Chi-square test. Inter group comparison for TNF-α was done using Mann-Whitney U test.

There were significantly higher levels of salivary TNF-α and MDA, in children of Group 1 when compared to that of Group 2 children (p < 0.01).

Salivary TNF-α and MDA may be a simple and non-invasive tool in the identification and screening of children at high risk for sleep disorders.