1. VALIDATION OF OPTICAL COHERENCE TOMOGRAPHY: A NOVEL 3-DIMENSIONAL BIOPHOTONICS IMAGING TECHNIQUE TO EXPLORE CANAL LUMEN ANATOMY APPLIED FOR CLINICAL ENDODONTIC PROCEDURES. AN IN VIVO STUDY.
- Author
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Sharma, Sumit, Singh, Jasbir, Sarin, Gautam, Singh, Alok, and Sharma, Ajay Shanker
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OPTICAL coherence tomography , *RETINAL imaging , *ROOT canal treatment , *HIGH resolution imaging , *DENTAL pulp cavities , *ENDODONTICS - Abstract
3-D assessing of intracanal anatomy in the clinical endodontic practice is always challenging. Although computed tomography could visualize intracanal anatomy but, they all use harmful ionized radiation and presented low sensitivity in detection of fine canal anatomy images. Optical coherence tomography (OCT) is a high-resolution imaging technique that allows micrometer scale imaging of biologic tissues over small distances, uses infrared light waves that reflect off the internal microstructure within the biologic tissues and gives high resolution images. In studies OCT has previously been shown to be a valuable tool in assessing intracanal anatomy, cleanliness of the canal after preparation, and even perforations. Aim: To evaluate the ability of optical coherence tomography (OCT) to image root canal walls, and to identify confounding factors in root canal treatment. Histological validation of data acquisition for root canal lumen dimensions (area and diameter) obtained from OCT scan. Methodology: Maxillary incisors with poor prognosis for endodontic treatment outcome were scanned for canal lumen dimension using Intra coronary OCT probe modality. The same tooth were extracted, was sectioned to get a total number of 20 slices (n=20). Root canal lumen dimension of each slice was validated and compared histologically, double blindedly using Nikon digital microscope software (NIKON DS -Ri2) with dimensions obtained by OCT scan. The mean data acquired by OCT were correlation with histological slices using co-relation regression test. Results: A strong correlation was found between the data acquired by using OCT and histology for area of canal lumen r (area) = 0.97, max and min diameter r= 0.95, 0.93 respectively. Conclusion: Optical coherence tomography is a non-invasive and non-destructive technique for endodontic imaging. It proved to be suitable for analysing the anatomy and cleanliness of root canal walls, and has a high sensitivity and specificity for detection of internal anatomy of canals. OCT generates high-resolution, real-time, intra-canal microscopic images, and holds great potential for in-vivo application. [ABSTRACT FROM AUTHOR]
- Published
- 2024