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Evaluation of the Effect of Low Level Laser Therapy on Bone Height and Bone Density Around Dental Implants Using Two Radiographic Assessment Methods
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| Author:
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AMR M SHEBAITA, AHMED A ZAKY, MUSHIRA M DAHABA, AMANY H NEMAT
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| Abstract:
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Introduction: Low level laser therapy LLLT has been used as a treatment modality to enhance healing of tissues. In dentistry, it is used to enhance healing of various oral and dental conditions and as a postsurgical healing modality. In recent years it was used to enhance osteointegration of dental implants. However, there are controversies regarding this later effect.
Aim: Radiographic evaluation of the effect of LLLT on bone height and bone density around dental implants using two different methods.
Methodology: Seven female patients 35-45 years were recruited for the research. Split mouth design was applied. Each patient received two dental implants at each side of the same jaw with a total of 14 implants. LLLT 870 was used every other day for three weeks. Follow up using semidirect digital radiography was done at base line post-surgical stage before laser application, 3 weeks and 3 months after laser application. This follow up included measuring bone height and bone density with a total of 28 bone height and 28 radiographic density measurements at every time interval. CBCT scans were used at baseline and 3 months after laser application to assess changes from all planes with a total of 56 bone height measurements ( from sagittal and coronal views) and 56 radiographic density measurements ( from sagittal and coronal views)at every time interval.
Results: Follow up at 3 months using semidirect digital periapical radiography revealed that the average mean bone height of the right side was 13.94 ± 1.57 and left side 13.03 ± 2.29, radiographic bone density right side was78.99 ± 10.54 and left side 87.78 ± 23.01. CBCT measurements from sagittal cuts revealed that bone height at the right side was 11.97 ± 1.57 and left side 11.63 ± 1.39. CBCT measurements from coronal cuts revealed that bone height at the right side was 12.71 ± 1.26 left side 10.77 ± 2.34. CBCT radiographic gray values(radiographic density) at follow up period from sagittal view at right side was 631.36 ± 608.42 while at left side it was 602.03 ± 419.06. CBCT radiographic gray values at follow up period from coronal view at right side was 967.04 ± 268.18 and left side 1062.66 ± 269.10. Comparing the level of bone height and bone density of the right side and the left side of the same patient and among the group of patients showed no significant difference between the side that received LLLT and the side that did not receive LLLT regarding measurements obtained from both imaging modalities.
Conclusion: Within the limitation of this study, LLLT did not have significant effect on the bone height and density around the investigated dental implants.
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| Keyword:
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postsurgical healing modality, radiographic density, sagittal cuts, osteointegration.
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2021.13.03.022
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| Download:
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