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Year : 2020  |  Volume : 12  |  Issue : 5  |  Page : 295-298  

“Laser dentistry”—The need of the hour: A cross-sectional study

Department of Orthodontics, RVS Dental College and Hospital, Sulur, Coimbatore, Tamil Nadu, India

Date of Submission31-Jan-2020
Date of Acceptance02-Mar-2020
Date of Web Publication28-Aug-2020

Correspondence Address:
Abirami Mathivanan
299, Dr. Radhakrishnan Road, Tatabad, Coimbatore, Tamil Nadu.
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpbs.JPBS_89_20

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Aim: The increase in the technological development in dentistry has led to a better and efficient treatment being rendered to the patient. One such development is the application of laser in the field of dentistry. The introduction of laser has provided various advantages to the dentist. Therefore, a study was conducted to assess awareness among the dentists in Coimbatore district about the application of laser. Materials and Methods: A cross-sectional study was conducted among the dentists in Coimbatore district. A questionnaire consisting of three parts was used to assess the knowledge, attitude, and practice of laser dentistry. Results: The results were tabulated, and the percentages were statistically analyzed. The knowledge of laser usage and application of laser was present for almost 55% of the dentist. The attitude of dentist toward the advantage of laser was less. The practice of laser dentistry was poor among dentists, and only 10% were effectively practicing laser dentistry. Conclusion: The advantages of laser in daily dental practice are more advantageous than the disadvantages such as cost of equipment and material handling. Therefore, there is a great need for creating awareness of laser dentistry. Cost-effective equipment is the need of the hour to promote laser dentistry.

Keywords: Dental application, laser dentistry, various specialties

How to cite this article:
Dhayanidhi A, Mudiarasu N, Mathivanan A, Gopalkrishnan JR, Nagarajan SK, Bharathan K. “Laser dentistry”—The need of the hour: A cross-sectional study. J Pharm Bioall Sci 2020;12, Suppl S1:295-8

How to cite this URL:
Dhayanidhi A, Mudiarasu N, Mathivanan A, Gopalkrishnan JR, Nagarajan SK, Bharathan K. “Laser dentistry”—The need of the hour: A cross-sectional study. J Pharm Bioall Sci [serial online] 2020 [cited 2021 May 6];12, Suppl S1:295-8. Available from:

   Introduction Top

Constant endeavor in keeping up with latest technology to make their work faster, precise, and efficient, has led the field of dentistry to adopt many modern sophisticated techniques, and these have made dentistry gain tremendous popularity among urban and rural population alike. One such among many is the use of lasers in dentistry. Laser is an acronym for “Light Amplification by Stimulated Emission of Radiation.”[1],[2] Along with many benefits, there are many challenges too faced by dentists such as high cost of laser unit and need for specialized training.[3],[4] The aim of the study was to evaluate the knowledge, awareness, and practice of laser dentistry among general dentist in and around Coimbatore district. The technological development and need to inculcate newer techniques to treat patients were the leads of this study.[3],[4],[5]

   Materials and Methods Top

A cross-sectional questionnaire study was conducted among practicing dentists in and around Coimbatore district, Tamil Nadu. Sample size calculation was done using the following formula:

Sample size derived was 240. Coimbatore district was divided into four zones as east, west, north, and south. Convenience sampling method was used to arrive at the adequate sample size.

A total of 60 dentists were selected from each zone to eliminate selection bias.

Data collection

A self-administered closed-ended questionnaire was designed. The questions were divided into three sections based on knowledge, attitude, and practice. Each dentist was met in person and explained about the purpose of the study followed by procuring an informed consent. Questionnaires were collected from the dentists within 2 days after distribution. Of the 240 dentists surveyed, only 186 of them responded back with filled questionnaires. Fifty-four dentists did not respond back due to their busy schedules and inadequate knowledge about laser.

Statistical analysis

Data collected from the questionnaire were entered into Microsoft Excel. The Cronbach α statistical analysis was performed to check the reliability of the questionnaire. A questionnaire is considered reliable when the values obtained after performing Cronbach α statistical analysis are >0.7. The value obtained for the questionnaire used in this study was 0.834, which indicated its reliability.

   Results Top

This questionnaire was given to 240 general practicing dentists of different specialties in and around Coimbatore district. Only 75% (70% males and 30% females) dentists responded to the questionnaire. In accordance with age-group, 33% dentists were younger than 35 years, 52% dentists were in 32–55 years age-group, and 15% dentists were older than 55 years [Figure 1].
Figure 1: Age group

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[Table 1] shows that 55% of the dentists were aware about the use of lasers in soft tissue, 20% dentists were aware about its hard tissue application, and 20% dentists were aware about its application in both hard and soft tissues. Knowledge about dental laser application was obtained mainly in oral surgery (40%), periodontics (29%), endodontics (15%), pedodontics (6%), prosthodontics (6%), and orthodontics (4%). The most known laser types among them were diode (65%), carbon dioxide (20%), Er:YAG, Nd: YAG (10%), and argon (2%) lasers. Of the total dentists, 80% got training for practicing laser by attending continuing dental education (CDE) programs.
Table 1: Knowledge

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[Table 2] shows dentist’s attitude toward laser application in dentistry. Most of the dentists were aware that laser will be less painful, requires less treatment time, does not require local anesthesia, and has faster healing. But 70% of the dentists were unaware that laser causes less bleeding during dental procedures.
Table 2: Attitude

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[Table 3] shows practice of laser among dentists. Though 70% of the dentists were interested in practicing laser, only 10% of the dentists were practicing laser dentistry using diode laser. High cost was the main reason for not practicing laser followed by the lack of experience, difficulty in convincing patients, and patient acceptance. Of the dentists, 95% showed interest to incorporate laser education in the under graduate (UG) curriculum.
Table 3: Practice

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   Discussion Top

The growing population and the advancements in technologies require regular upgradation of knowledge. Laser dentistry is one such application and is the need of the hour. A survey was conducted to assess the knowledge regarding laser and its applications in dentistry. The majority of the dentists were aware of the application of lasers in dentistry; however, a majority of the dentists were of the opinion that lasers were used for only soft tissue procedures, but the diverse application of lasers in the various branches of dentistry is yet to be known to all general practitioners.[6] A vast number of practitioners were aware of the application of laser in the field of oral surgery and periodontics,[7],[8],[9],[10] as their application for the soft tissue procedures was widely dependent on laser. The general practitioners were mostly dependent on the CDE programs or private learning sessions for their knowledge on lasers. The results of our study also showed the importance of educating dentists at their undergraduate level so that the application of lasers in general dental practice can improve.

The attitude of general dentists regarding the advantages of lasers was assessed and the following observations were made. Painless procedure is the most known advantage of laser among dentists as it may be due to general education knowledge about laser in dentistry.[11],[12],[13],[14] Most of the dentists did not know about the homeostasis effect on dental tissues. The reduced duration of the dental procedure when done using laser was not known to most of the clinicians. The awareness of faster healing of tissues after laser procedure was also less among general dental practitioners.[15],[16],[17] The knowledge on the requirement for local anesthesia for procedures done using laser was also poor among dentists.

Though most of the dentists were interested in the usage of lasers, the inadequate experience and expensive equipment, investment in CDE, or private sessions to learn the technique hindered the application of laser in regular dental practice. With wide range of advantages of lasers, proper education and training at undergraduate level would drastically improve the knowledge and awareness of laser. Production of laser equipment in India with reduced cost would certainly reduce the treatment cost and increase the number of patients opting for laser dental procedures. This in turn will increase the number of dentists procuring laser equipment for their dental practice.

   Conclusion Top

Dental lasers, being introduced since a decade, have not been used to its full potential. Knowledge and awareness of laser among dentists still remain questionable in spite of its advantages. The results of this study show that the majority of the dentists learnt about laser through CDE programs. This indicates that laser education needs to be implemented in UG program. Even though many dentists are interested in practicing laser, the major drawback lies in its cost factor. If it is used to its full power, laser can revolutionize dentistry in diagnosis, prevention, and treatment planning, thus providing utmost care to patients. In this technological era, an exponential usage in laser should be made possible by reducing its production costs with high standards.

Financial support and sponsorship


Conflicts of interest

There are no conflicts of interest.

   References Top

Cernavin I, Pugatschew A, de Boer N, Tyas MJ Laser applications in dentistry: a review of the literature. Aust Dent J 1994;39:28-32.  Back to cited text no. 1
Husein A Applications of lasers in dentistry: a review. Archiv Orofacial Sci 2006;1:1-14.  Back to cited text no. 2
Iacopino AM The influence of “new science” on dental education: current concepts, trends, and models for the future. J Dent Educ 2007;71:450-62.  Back to cited text no. 3
Walsh LJ The current status of laser applications in dentistry. Aust Dent J 2003;48:146-55; quiz 198.  Back to cited text no. 4
Kumar P, Gupta V, Dixit A, Marwah S Imperative role of lasers in perspective future dental research and advancements: an insight story. J Adv Med Dent Sci Res 2014;2:114-7.  Back to cited text no. 5
Moritz A, Gutknecht N, Goharkhay K, Schoop U, Wernisch J, Sperr W In vitro irradiation of infected root canals with a diode laser: results of microbiologic, infrared spectrometric, and stain penetration examinations. Quintessence Int 1997;28:205-9.  Back to cited text no. 6
Dostálová T, Jelínková H, Housová D, Sulc J, Nemeć M, Dusková J, et al. Endodontic treatment with application of Er:YAG laser waveguide radiation disinfection. J Clin Laser Med Surg 2002;20:135-9.  Back to cited text no. 7
Strauss RA, Jones G, Wojtkowski DE A comparison of postoperative pain parameters between CO2 laser and scalpel biopsies. J Oral Laser Appl 2006;6:39-42.  Back to cited text no. 8
Pecaro BC, Garehime WJ The CO2 laser in oral and maxillofacial surgery. J Oral Maxillofac Surg 1983;41:725-8.  Back to cited text no. 9
Pick RM, Pecaro BC, Silberman CJ The laser gingivectomy. J Periodont 1985;56:492-4.  Back to cited text no. 10
Convissar RA The biologic rationale for the use of lasers in dentistry. Dent Clin N Am 2004;48:771-94.  Back to cited text no. 11
Moritz A Oral laser applications. Berlin, Germany: Quintessence Verlags; 2006.  Back to cited text no. 12
Coluzzi DJ, Convissar RA Lasers in clinical dentistry. Dent Clin North Am 2004;48:xi-xii.  Back to cited text no. 13
Parker S Introduction and history of lasers and laser light production. BDJ 2007;202:21-31 (1) .  Back to cited text no. 14
Luk K, Swick M The use of lasers in dentistry. A clinical reference guide for the diode 810 nm and Er:Yag. Germany: Elexxion; 2009.  Back to cited text no. 15
Weiner GP Laser dentistry practice management. Dent Clin N Am 2004;48:1105-26.  Back to cited text no. 16
Lynda DW, Julie MB, Windy MB, Kenneth SD, Cameron DB, Donna LW, et al. The effects of laser therapy on tissue repair and pain control: a meta-analysis of the literature. Proc. Third Congress World Assn for Laser Therapy, Athens, Greece, May 10-13 2000; p. 77.  Back to cited text no. 17


  [Figure 1]

  [Table 1], [Table 2], [Table 3]


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