Analysis of Occlusal Forces and Amplitude of Mandibular Movement in Children Based on the Need for Orthodontic Treatment
Journal Title: Annual Research & Review in Biology - Year 2017, Vol 20, Issue 3
Abstract
This study analyzed the occlusal forces at the maxillo-mandibular interface and the mandibular mobility in children with and without the need for orthodontic treatment. Ninety children were divided into the following three groups based on the Dental Health Component of the Index of Orthodontic Treatment Need (IOTN-DHC): those with no need for orthodontic treatment ([NNG]; mean age 8.00 (SD: 0.43) years; n = 26), those with small malocclusions and slight need for orthodontic treatment ([SNG] mean age 8.89 (SD:0.43) years; n = 28), and those with moderate malocclusions and need for orthodontic treatment ([MNG]; mean age 8.44 (SD:0.22) years; n = 36). The T-Scan® III Occlusal Analysis system was used to evaluate the occlusal forces (%) during contact between the maxilla and the mandible (right and left side). Normal and maximum voluntary opening range and mandibular border movements (right laterality, left laterality and protrusion) were measured using a millimeter ruler. Data were tabulated and subjected to statistical analysis (ANOVA and Bonferroni test, P ≤ .05). It was verified that MNG had lower occlusal forces compared to NNG and SNG, with respect to the maxilla/mandible (right and left side), with no significant difference, and greater amplitude of mouth opening and mandibular jaw movements with significant difference in normal mouth opening between SNG and MNG (P = .04). Children with a moderate need for orthodontic treatment presented functional changes in the stomatognathic system.
Authors and Affiliations
Nicolly Parente Ribeiro Frota, Marcelo Palinkas, Lígia Maria Napolitano Gonçalves, Bárbara de Lima Lucas, Evandro Marianetti Fioco, Leonardo Giovannetti Palinkas, Kranya Victoria Díaz-Serrano, Isabela Hallak Regalo, Selma Siéssere, Simone Cecilio Hallak Regalo
Keywords
Related Articles
- EP ID EP314984
- DOI 10.9734/ARRB/2017/37898
- Views 83
- Downloads 0
Time-kill Study of Ethyl Acetate Extract of Stinging Nettle on Bacillus subtilis subsp. spizizenii ATCC CRM-6633 Strain NRS 231
Aims: This work investigated the antibacterial activity of selected ethyl acetate extract of Urtica dioica against Bacillus subtilis subsp. spizizenii ATCC® CRM-6633™ Strain NRS 231 (subtilin producer) based on the time-...
Extrapolation of the Species Accumulation Curve Associated to “Chao” Estimator of the Number of Unrecorded Species: A Mathematically Consistent Derivation
Incomplete samplings are doomed to become common practice for many inventories of biodiversity, thereby inviting to extrapolate what the rate of accumulation of newly recorded species would be if sampling was to be conti...
Seminal Plasma Levels of Neutral Alpha Glucosidase Activity and Its Interactions with Spermiogram in Nigerian Males
Introduction: Seminal neutral alpha glucosidase activity is a useful parameter in determination of the cause of azoospermia, This has often been reported to have seasonal variation and has not been extensively studied in...
The Brain Cholinergic System in Neurodegenerative Diseases
The neurodegenerative diseases are characterized by a progressive process of neuronal and myelin breakdown resulting in changes in the morphology and function of neurons and their death. The damage and death of the neuro...
In vivo Antimalarial Activity of Solvents Extracts of Alstonia boonei Stem Bark and Partial Characterization of Most Active Extract(s)
Alstonia boonei, a plant locally called ‘Egbu’ in South Eastern Nigeria is used traditionally in the treatment of malaria in the region. This research was carried out to evaluate in vivo antimalarial activity of differen...