Thermal stress distribution in laser irradiated hard dental tissue

Implications for dental applications

Massoud Motamedi, S. Rastegar, B. Anyari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

This paper examines the thermomechanical effects of Er :YAG irradiation of a tooth from a theoretical standpoint. Neglecting heat conduction and light scattering in tissue, analytical solutions for heat and stress distribution were used to estimate the radial and circumferential stresses developed as a result of temperature rise on the surface of a tooth. Radial stresses were always found to be compressive. Circumferential stresses, however, were compressive within a range inside the beam radius, and tensile outside the beam radius. Locations of the maximum tensile stress and maximum displacement were found to be outside and inside the beam radius (l/e2), respectively. Maximum stresses and displacements decreased monotonically with increasing beam radius. Our results also revealed that ablation and thermal stresses beyond enamel strength could be reached within a single laser pulse.

Original languageEnglish (US)
Title of host publicationLaser-Tissue Interaction III
EditorsSteven L. Jacques
PublisherSPIE
Pages315-321
Number of pages7
Volume1646
ISBN (Electronic)9780819407924
DOIs
StatePublished - Aug 7 1992
EventLaser-Tissue Interaction III 1992 - Los Angeles, United States
Duration: Jan 19 1992Jan 24 1992

Other

OtherLaser-Tissue Interaction III 1992
CountryUnited States
CityLos Angeles
Period1/19/921/24/92

Fingerprint

Thermal Stress
Stress Distribution
thermal stresses
Thermal stress
stress distribution
Stress concentration
Tissue
Laser
radii
Radius
Lasers
teeth
lasers
Er:YAG
enamels
Enamels
Ablation
tensile stress
Heat conduction
Tensile stress

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Motamedi, M., Rastegar, S., & Anyari, B. (1992). Thermal stress distribution in laser irradiated hard dental tissue: Implications for dental applications. In S. L. Jacques (Ed.), Laser-Tissue Interaction III (Vol. 1646, pp. 315-321). SPIE. https://doi.org/10.1117/12.137474

Thermal stress distribution in laser irradiated hard dental tissue : Implications for dental applications. / Motamedi, Massoud; Rastegar, S.; Anyari, B.

Laser-Tissue Interaction III. ed. / Steven L. Jacques. Vol. 1646 SPIE, 1992. p. 315-321.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Motamedi, M, Rastegar, S & Anyari, B 1992, Thermal stress distribution in laser irradiated hard dental tissue: Implications for dental applications. in SL Jacques (ed.), Laser-Tissue Interaction III. vol. 1646, SPIE, pp. 315-321, Laser-Tissue Interaction III 1992, Los Angeles, United States, 1/19/92. https://doi.org/10.1117/12.137474
Motamedi M, Rastegar S, Anyari B. Thermal stress distribution in laser irradiated hard dental tissue: Implications for dental applications. In Jacques SL, editor, Laser-Tissue Interaction III. Vol. 1646. SPIE. 1992. p. 315-321 https://doi.org/10.1117/12.137474
Motamedi, Massoud ; Rastegar, S. ; Anyari, B. / Thermal stress distribution in laser irradiated hard dental tissue : Implications for dental applications. Laser-Tissue Interaction III. editor / Steven L. Jacques. Vol. 1646 SPIE, 1992. pp. 315-321
@inproceedings{e0a28e13016d405a9ffa697a8aec6099,
title = "Thermal stress distribution in laser irradiated hard dental tissue: Implications for dental applications",
abstract = "This paper examines the thermomechanical effects of Er :YAG irradiation of a tooth from a theoretical standpoint. Neglecting heat conduction and light scattering in tissue, analytical solutions for heat and stress distribution were used to estimate the radial and circumferential stresses developed as a result of temperature rise on the surface of a tooth. Radial stresses were always found to be compressive. Circumferential stresses, however, were compressive within a range inside the beam radius, and tensile outside the beam radius. Locations of the maximum tensile stress and maximum displacement were found to be outside and inside the beam radius (l/e2), respectively. Maximum stresses and displacements decreased monotonically with increasing beam radius. Our results also revealed that ablation and thermal stresses beyond enamel strength could be reached within a single laser pulse.",
author = "Massoud Motamedi and S. Rastegar and B. Anyari",
year = "1992",
month = "8",
day = "7",
doi = "10.1117/12.137474",
language = "English (US)",
volume = "1646",
pages = "315--321",
editor = "Jacques, {Steven L.}",
booktitle = "Laser-Tissue Interaction III",
publisher = "SPIE",

}

TY - GEN

T1 - Thermal stress distribution in laser irradiated hard dental tissue

T2 - Implications for dental applications

AU - Motamedi, Massoud

AU - Rastegar, S.

AU - Anyari, B.

PY - 1992/8/7

Y1 - 1992/8/7

N2 - This paper examines the thermomechanical effects of Er :YAG irradiation of a tooth from a theoretical standpoint. Neglecting heat conduction and light scattering in tissue, analytical solutions for heat and stress distribution were used to estimate the radial and circumferential stresses developed as a result of temperature rise on the surface of a tooth. Radial stresses were always found to be compressive. Circumferential stresses, however, were compressive within a range inside the beam radius, and tensile outside the beam radius. Locations of the maximum tensile stress and maximum displacement were found to be outside and inside the beam radius (l/e2), respectively. Maximum stresses and displacements decreased monotonically with increasing beam radius. Our results also revealed that ablation and thermal stresses beyond enamel strength could be reached within a single laser pulse.

AB - This paper examines the thermomechanical effects of Er :YAG irradiation of a tooth from a theoretical standpoint. Neglecting heat conduction and light scattering in tissue, analytical solutions for heat and stress distribution were used to estimate the radial and circumferential stresses developed as a result of temperature rise on the surface of a tooth. Radial stresses were always found to be compressive. Circumferential stresses, however, were compressive within a range inside the beam radius, and tensile outside the beam radius. Locations of the maximum tensile stress and maximum displacement were found to be outside and inside the beam radius (l/e2), respectively. Maximum stresses and displacements decreased monotonically with increasing beam radius. Our results also revealed that ablation and thermal stresses beyond enamel strength could be reached within a single laser pulse.

UR - http://www.scopus.com/inward/record.url?scp=2842552575&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2842552575&partnerID=8YFLogxK

U2 - 10.1117/12.137474

DO - 10.1117/12.137474

M3 - Conference contribution

VL - 1646

SP - 315

EP - 321

BT - Laser-Tissue Interaction III

A2 - Jacques, Steven L.

PB - SPIE

ER -