Home | About us | Editorial board | Search | Ahead of print | Current issue | Archives | Submit article | Instructions| Reviewers

Login 
  Home Print this page Email this page Small font sizeDefault font sizeIncrease font size Users Online: 124    
     
ORIGINAL ARTICLE
Year : 2020  |  Volume : 10  |  Issue : 4  |  Page : 473-480

Assessment of structural changes in translucency and opacity of tooth enamel against a direct demineralization process: An in vitro study


1 Department of Master in Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima-, Peru
2 Department of Preventive and Social Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima-, Peru
3 Department of Rehabilitative Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima-, Peru
4 Department of Pediatric Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima-, Peru
5 Department of Rehabilitative Stomatology, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima-Peru; Postgraduate Department, Faculty of Health Sciences, Universidad Científica del Sur, Lima-, Peru

Correspondence Address:
Dr. Frank Mayta-Tovalino
Avenue Paseo de la República 5544, Miraflores.
Peru
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jispcd.JISPCD_158_20

Rights and Permissions

Objective: The objective of this study was to assess in vitro the structural changes in translucency and opacity of tooth enamel following a direct demineralization process. Materials and Methods: This experimental in vitro study evaluated 45 thirds (cervical, middle, and occlusal) of the tooth enamel surface of premolar teeth extracted from young adults divided into three groups of 15 specimens each: Group 1 (solution based on calcium, phosphorus, and fluorine), Group 2 (orthophosphoric acid 37%), and control group (distilled water). All underwent optical macroscopic examination with ×3 magnification to determine the initial translucency according to the variation of the medium in their intercrystalline spaces, and Thylstrup and Fejerskov Index was used. The experimental groups were then subjected to an artificial caries process during which the specimens were placed in an inorganic and organic solution of calcium, phosphorus, and fluorine at 37°C for 90 days with the acidic solution at pH 5 and the neutral solution at pH 7. The control specimens were placed in distilled water. Finally, all the specimens were assessed by polarization microscopy. Results: In relation to the occlusal third, the highest proportion in Groups 1 and 2 was in Grades 2 and 3 (80%). A significant association was only observed between the experimental groups in the degree of translucency in the occlusal third (P = 0.002), whereas no association was found in relation to the degree of opacity in the middle and cervical thirds in either study group (P > 0.05). Conclusion: The resistance of enamel hydroxyapatite crystals increases from occlusal to cervical due to the greater presence of aprismatic enamel in the cervical horizontal third.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed250    
    Printed6    
    Emailed0    
    PDF Downloaded40    
    Comments [Add]    

Recommend this journal