Detection of Early Carious Lesions Using Laser Diode Near-Infrared Transillumination (In Vitro Study)
Journal Title: Biomedical Journal of Scientific & Technical Research (BJSTR) - Year 2017, Vol 1, Issue 3
Abstract
Introduction: The importance of early detection before the development of irreversible damage is now generally accepted [1]. Most studies do not report the presence of non cavitated lesions, though they have been shown to have predictive value [2]. Aim of the study: Validate DIAGNO cam (KaVo, Biberach, Germany) as a diagnostic instrument in the early detection of non cavitated carious lesions. Materials and method: Thirty three extracted sound premolars were examined on both approximal surfaces by EDX to determine Ca/P ions ratio on (D1), imaged using Periapical Digital Radiography (D2), and transilluminated using DIAGNO cam (D3). Any defect that indicated cavities by any of the mentioned methods discarded the tooth. Three teeth were randomly selected and imaged by Scanning Electron Microscopy. The remaining thirty teeth were covered with acid resistant varnish except in 3x3mm in approximal areas and 15 teeth were immersed in a demineralizing solution for 48H (Group I), the other 15 teeth were immersed for 72H (Group II). Both groups were then re-examined using D1, D2 & D3. Six teeth of groups I & II were selected and imaged by Scanning Electron Microscopy. Results: Group I: D1 detected (100%) Ca/P ions ratio less than 1.8 (demineralized), D2 (100%) sound enamel, while D3 (66.67%) black spots and (33.33. %) sound. Chi square test showed that D1 is more accurate than D2 and D3, while D3 is more accurate than D2 and the differences were statistically significant. Group II: D1 detected (100%) Ca/P ions ratio less than 1.8 (demineralized), detected (6.67%) with enamel radiolucency and (93.33%) sound, while D3 (80%) black spots and (20%) sound. Chi square test showed that there is a statistically significant difference between D2 and the remaining diagnostic means (D1 and D3). SEM in both groups I & II showed evidence of enamel demineralization in all randomly selected samples
Authors and Affiliations
Amir N El-Kholi, Samir A Koheil, Mona M Ghoneim
Process Validation of Pharmaceutical Dosages Form: A Review
Quality is always an imperative prerequisite when consider any product. Therefore, drugs must be manufactured to the highest quality levels. Validation is a part of the quality assurance program and is fundamental to an...
Hyaline Cartilage Regeneration on Osteochondral defects by Intraarticular Injection of Human Peripheral Blood CD34+ Cells, Hyaluronic Acid and Growth Factor in a Rat Model
The knee joint cartilage often suffers from defect and it causes serious health problem. CD34+ stem cells have been studied to heal bone fracture however the cells has never been studied to repair cartilage. This study a...
A Study To Assess The Effectiveness Of Structured Teaching Programme on Knowledge of ‘Electrocardiogram’ Among 2nd Year B.Sc. Nursing Students in Selected Nursing College At Indore
The study was conducted to assess the effectiveness of structured teaching programme on knowledge of ‘electrocardiogram’ among nursing students. The study was conducted in Nursing College at Indore. Total samples were 30...
Potentials for Reducing Cancer Incidence in Nigeria
Cancer genomics is changing oncology care and cancer detection rates in developed countries where genetic information can be used to improve care and management as well as inform decisions for personalized care for indiv...
Wound Healing Effects of Bentonite: A Rabbit Model Experimental Study
Background: Injuries and infection result into wounds with variety of complexed stepwise sequenced events leading to either healing or complications. Wound management is based on multidimensional approach from removing t...