The Use of Optical Coherence Tomography in Dental Diagnostics: A State-of-the-Art Review

Table 8

OCT in dentistry review articles in the last 5 years.

Number	Reference number	Author	Title	Significance
(1)	[189]	Clarkson et al.	Optical technology: an update on optical coherence tomography in dentistry	The technique of optical coherence tomography is considered to be significant since the technology involved allows imaging using light to around 2-3 mm in the teeth and can, for example, allow the extent and progression of carious lesions to be determined.
(2)	[190]	Gupta et al.	Optical coherence tomography: a new era in dentistry	It can be used for noninvasive investigations for both in vivo and in vitro structural imaging within the oral cavity.
(3)	[191]	Canjau et al.	Optical coherence tomography for non-invasive ex vivo investigations in dental medicine—a joint group experience	Complementary studies are possible embracing OCT with more traditional methods, such as confocal microscopy and micro-CT. Combination of principles is expected to evolve due to their limitations when considered separately.
(4)	[192]	Benic et al.	Novel digital imaging techniques to assess the outcome in oral rehabilitation with dental implants: a narrative review	New optical imaging techniques may be considered possible approaches for monitoring peri-implant soft tissue health. MRI and ultrasonography appear promising non-ionizing radiation-imaging modalities for the assessment of soft tissue and bone defect morphologies. Optical scanners and OCT may represent efficient clinical methods for accurate assessment of the misfit between the reconstructions and the implants.
(5)	[193]	Singh M. et al.	Optical coherence tomography—a imaging modality in dentistry beyond X-rays	OCT offers noninvasive, noncontact, in vivo, and real-time subsurface images with high-depth resolution. OCT represents a valuable method for investigation and assessment of the health status of soft oral tissues and of hard dental structures. OCT can be used for evaluation of dental treatments reducing their failure rate and saving time and resources, by eliminating incorrect restorations before their insertion in the oral cavity.
(6)	[194]	Hsieh et al.	Dental optical coherence tomography	Dental OCT demonstrates broad applications in soft and hard tissue imaging and early detection of caries, periodontal disease, and oral cancer. OCT can be used for gingiva, periodontal, and mucosa imaging. OCT may also apply in bone-related disease imaging. OCT and PS-OCT represent powerful ability for early diagnosis of caries. Mineral changes at early demineralization stages can be distinguished by PS-OCT. Subgingival calculus can also be detected by OCT. OCT provides images of dental tissue in situ and real-time and allows early detection of many oral diseases, including caries, periodontal disease, and oral cancer.
(7)	[195]	Shimada et al.	Application of optical coherence tomography (OCT) for diagnosis of caries, cracks, and defects of restorations	Describes the use of OCT for detecting dental caries, tooth fractures, and interfacial aps in intraoral restorations. OCT can be a reliable and accurate method and a safer alternative to X-ray radiography.
(8)	[196]	Benic et al.	Novel digital imaging techniques to assess the outcome in oral rehabilitation with dental implants: a narrative review	Optical scanners and OCT may represent efficient clinical methods for accurate assessment of the misfit between the reconstructions and the implants.
(9)	[197]	Colston et al.	Imaging of the oral cavity using optical coherence tomography	The intensity of backscattered light is measured as a function of depth in the tissue. Low coherence interferometry is used to selectively remove the component of backscattered signal that has undergone multiple scattering events, resulting in very high resolution images (<15 microns). Lateral scanning of the probe beam across the biological tissue is then used to generate a 2D intensity plot, similar to ultrasound images. This imaging method provides information that is currently unobtainable by any other means, making possible such diverse applications as diagnosis of periodontal disease, caries detection, and evaluation of restoration integrity.
(10)	[198]	Se-Wook et al.	Study on application to the field of dentistry using optical coherence tomography (OCT)	This review discusses not only the basic principles of operation, types, advantages, and disadvantages of OCT but also the future applications of OCT technology and their potential in the field of dental diagnosis.