Document Detail

Effect of a new remineralizing biomaterial on the color of dental enamel.
MedLine Citation:
PMID:  25335359     Owner:  NLM     Status:  In-Process    
The aim of this research was to describe the effects of altering the composition of a modified remineralizing agent (MRA) and the osmotic pressure on tooth color by using spectrophotometric analysis. One hundred and four (104) human premolars and molars were randomly divided into 2 groups of 52 specimens each. Group 1 was treated with the remineralizing agent MRA 55, (remineralizing agent 1), a 50% - 50% by weight mixture of coarse-grain and fine-grain generating minerals, and group 2 was treated with the remineralizing agent MRA 91 (remineralizing agent 2), containing the same minerals in a 90% - 10% proportion. Each group was divided into 2 subgroups with 26 specimens each, which were stored as follows: subgroups A were stored in synthetic saliva with isotonic osmotic pressure (IP), and subgroups B in hypotonic osmotic pressure saliva (HP). The initial and final readings were taken with a Vita Easy Shade spectrophotometer. Color parameters (L*, a*, b*) and whiteness indices (WIC, WIO, W) were calculated from the readings. The color changes (deltaL, deltaA, deltaB, and deltaE) and whiteness indices were compared and analyzed with descriptive analyses. The variables deltaL, deltaA, deltaB, deltaE, and the whiteness index W were analyzed with an analysis of variance (ANOVA), and the indices WIC and WIO were analyzed with a nonparametric Kruskal-Wallis ANOVA. The results indicate that combination A2 (MRA 91 and IP) affected variables deltaB and deltaE, while combination B1 (MRA 55 and HP) affected variables deltaA, deltaB and the whiteness index WIO. Only MRA 91 affected the variable deltaL. The osmotic pressure of saliva and the remineralizing agent used affect the color of dental enamel.
Paula K Vargas-Sánchez; Edgar Delgado-Mejía; Carolina Torres-Rodríguez
Related Documents :
8829819 - Hypertension from carotid occlusion decreases renal papillary plasma flow, hypotension ...
25294299 - Beetroot supplementation lowers daily systolic blood pressure in older, overweight subj...
12147319 - Prenatal malnutrition-induced hypertension in young rats is prevented by neonatal capsa...
17967999 - Long-term circulatory consequences of perinatal iron deficiency in male wistar rats.
3594219 - Direct excitatory effects of neuropeptide y (npy) on rat hippocampal neurones in vitro.
3768689 - Intrinsic neurons in the amygdaloid field projected to by the medial geniculate body me...
8335549 - Near-infrared spectrophotometric device to measure fluid exchange in blood-perfused org...
2340609 - Dipyridamole-thallium myocardial scanning in the preoperative assessment of patients un...
16711469 - Blood pressure and heart rate responses in men exposed to arm and leg cold pressor test...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta odontológica latinoamericana : AOL     Volume:  27     ISSN:  0326-4815     ISO Abbreviation:  Acta Odontol Latinoam     Publication Date:  2014  
Date Detail:
Created Date:  2014-10-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610218     Medline TA:  Acta Odontol Latinoam     Country:  Argentina    
Other Details:
Languages:  eng     Pagination:  3-8     Citation Subset:  D    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Phytodermatitis to Euphorbia trigona.
Next Document:  Validation of an instrument to assess factors associated with adherence to standard precautions amon...