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JAYPEE JOURNALS
International Scientific Journals from Jaypee
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List of All Articles
1.  Original Article
Comparative Evaluation of Laser Etching and Acid Etching: An in vitro Study
Varsha V Sobha, NK Sapna Varma, VV Ajith
[Year:2016] [Month:January-April] [Volume:6 ] [Number:1] [Pages:37] [Pages No:6-11] [No of Hits : 1581]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1079 | FREE

ABSTRACT

Introduction: Recent innovations in bonding propose laser ablation as an alternative method to acid etching. Objectives: The objective of this study is to compare the effect of laser irradiation at medium-short pulse (MSP) mode, quantum-square pulse (QSP) mode, and acid etching on the shear bond strength (SBS) of orthodontic brackets to enamel.

Materials and methods: Forty-two premolars were allocated to three groups (14 each): (1) 37% phosphoric acid etching; (2) erbium-doped yttrium aluminum garnet (Er:YAG) laser etching with MSP mode; (3) Er:YAG laser etching with quantum- square pulse mode. Metallic brackets were bonded with Transbond XT. After photo polymerization, the SBS values were recorded with universal testing machine. Surface morphology was evaluated with scanning electron microscopy (SEM). The remaining adhesive was assessed using adhesive remnant index (ARI).

Results: Nonparametric test was used to analyze the statistical significance. A mean rank of 18.29 and 10.71 was obtained for QSP mode and acid etching with p = 0.015, 18.14; and 10.86 for MSP mode and acid etching with p = 0.019; and 14 and 15 for QSP mode and MSP mode with p = 0.748. Statistically significant difference was found between laser and acid-etched group. The SEM scan showed MSP mode with regular and uniform surface, like acid-etched sample, whereas QSP samples had irregular and severely rough surface. The ARI indicates that failure sites are mainly at the enamel/adhesive interface in the acid-etched and MSP mode group and at the bracket base/adhesive interface in QSP mode group.

Conclusion: Laser etching in MSP mode is a successful alternative to acid etching, and provides a safer debonding of the brackets from the enamel surface without causing fractures.

Keywords: Acid etching, Bonding, Laser, Shear bond strength.

How to cite this article: Sobha VV, Varma NKS, Ajith VV. Comparative Evaluation of Laser Etching and Acid Etching: An in vitro Study. Int J Laser Dent 2016;6(1):6-11.

Source of support: Nil

Conflict of interest: None

 
2.  Research Article
Diode Laser as an Adjunctive to Nonsurgical Periodontal Therapy during Maintenance Phase: A Randomized Controlled Clinical Trial
SS Suprith, Swati Setty, Srinath Thakur
[Year:2016] [Month:January-April] [Volume:6 ] [Number:1] [Pages:37] [Pages No:12-17] [No of Hits : 670]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1080 | FREE

ABSTRACT

Aim: The aim of the study was to determine and compare the pocket depths (PD), relative attachment levels (RAL), bleeding on probing (BOP) and plaque indices (PI) in patients treated with scaling and root planning (SRP) alone and along with diode laser.

Materials and methods: The study was carried out on 30 subjects who fulfill the inclusion and exclusion criteria. Group I: 15 patients treated with SRP along with diode laser irradiation. Group II: 15 patients treated only with SRP. The clinical parameters were probing PD, RAL, BOP and PI which were recorded at base line, 7 days and after 1 month. Statistical analysis was done using Kolmogorov-Smirnov, Shapiro-Wilk, t-test, chi-square test.

Results: The use of diode lasers as an adjunct to SRP during maintenance phase showed better results when compared to SRP alone. Moderate periodontal pockets with moderate attachment loss showed significant improvement in group I than in group II. There was no change in deep pockets with severe attachment loss in both groups.

Clinical significance: The study shows that the specified laser parameter and the modality of application of the same results in faster healing. This can be recommended as an appropriate treatment for moderate pockets.

Keywords: Dental laser, Laser dentistry, Laser dentistry treatments, Laser uses in dentistry.

How to cite this article: Suprit SS, Setty S, Thakur S. Diode Laser as an Adjunctive to Nonsurgical Periodontal Therapy during Maintenance Phase: A Randomized Controlled Clinical Trial. Int J Laser Dent 2016;6(1):12-17.

Source of support: Nil

Conflict of interest: None

 
3.  Original Article
Histological Evaluation of a Novel Pulpotomy Technique with Low-level Laser Therapy and Its Comparison with Formocresol: A Randomized Animal Trial
AR Prabhakar, Amitha M Shagale, Chandrashekar Yavagal
[Year:2016] [Month:January-April] [Volume:6 ] [Number:1] [Pages:37] [Pages No:1-5] [No of Hits : 572]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1078 | FREE

ABSTRACT

Aim: Low-level laser therapy (LLLT) has been increasingly used over the past few decades in both medicine and dentistry. It has been suggested that LLLT may be helpful in pulpal wound healing following pulp exposure. The purpose of this study was to evaluate the histological changes in dental pulp tissue after a pulpotomy procedure using a low-level diode laser in comparison with the gold standard formocresol.

Materials and methods: In this experimental split-mouth study, 20 teeth were randomly selected from five dogs. The animals were anesthetized and pulpotomized using a low-level diode laser (660 nm, 36 mW) and formocresol respectively. One week later, the pulpotomized teeth were extracted and subjected to histological evaluation. Histological changes seen in the pulp tissues of all the interventional groups were subjected to statistical analysis using Mann–Whitney U test for pairwise comparison; p < 0.05 was considered as statistically significant and p > 0.05 nonsignificant.

Results: On histologic evaluation, least amount of inflammation and maximal healing was evident in the LLLT group. On the contrary, the formocresol group showed severe inflammation.

Conclusion: Low-level laser therapy promises to be a safe, minimally invasive, yet maximally effective modality for pulpotomy.

Keywords: Formocresol, Low-level laser therapy, Pulpotomy medicament.

How to cite this article: Prabhakar AR, Shagale AM, Yavagal C. Histological Evaluation of a Novel Pulpotomy Technique with Low-level Laser Therapy and Its Comparison with Formocresol: A Randomized Animal Trial. Int J Laser Dent 2016;6(1):1-5.

Source of support: Nil

Conflict of interest: None

 
4.  Research Article
Removal Efficiency of Calcium Hydroxide Intracanal Medicament with Er:YAG Laser: A Scanning Electron Microscopic Study
Evriklia Kourti, Ourania Pantelidou, Antonis Kallis
[Year:2016] [Month:January-April] [Volume:6 ] [Number:1] [Pages:37] [Pages No:24-30] [No of Hits : 540]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1082 | FREE

ABSTRACT

Aim: This ex vivo study compared the efficiency of Er:YAG laser to remove calcium hydroxide from root canal walls, especially from the apical third, with manual and ultrasonic irrigation technique by using a scanning electron microscopic (SEM).

Materials and methods: Sixty-four single-rooted teeth were divided into 3 groups of 20 teeth each. The rest 4 teeth were used as control groups (2 positive and 2 negative control group). After coronal access, all teeth were instrumented by Protaper Next rotary files (Dentsply-Maillefer, Ballaigues, Switzerland) up to size F3, followed an irrigation protocol and filled with pure calcium hydroxide powder mixed with saline. Teeth were stored in an incubator for 7 days and then calcium hydroxide was removed using 3 techniques: Manually (group I), by ultrasonic irrigation (group II), by laser Er:YAG and x-pulse tip (group III). The teeth of control groups were instrumented as the experimental groups; no removal technique was applied in positive group, whereas in negative one, the root canals were left empty. Teeth were sectioned longitudinally and observed under SEM. Results were statistically analyzed with the Kruskal–Wallis test and Mann–Whitney test.

Results: The results showed significant difference between laser and the other two groups in coronal and middle root third, but no statistic difference in apical third.

Conclusion: Laser improved the removal of calcium hydroxide in comparison with conventional techniques.

Key words: Calcium hydroxide, Removal methods, Root canal, Scanning electron microscopy.

How to cite this article: Kourti E, Pantelidou O, Kallis A. Removal Efficiency of Calcium Hydroxide Intracanal Medicament with Er:YAG Laser: A Scanning Electron Microscopic Study. Int J Laser Dent 2016;6(1):24-30.

Source of support: Nil

Conflict of interest: None

 
5.  Case Report
A Comprehensive Treatment Protocol for Lingual Frenectomy with Combination of Lasers and Speech Therapy: Two Case Reports
Vidyaa Hari Iyer, Sujatha Sudarsan
[Year:2015] [Month:January-April] [Volume:5 ] [Number:1] [Pages:32] [Pages No:12-21] [No of Hits : 3087]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1066 | FREE

ABSTRACT

Lingual frenectomy is the procedure that involves removal of a band of tissue, the lingual frenulum which connects the tongue with floor of the mouth. The procedure is generally safe, but caution is necessary as it can cause severe, permanent or untreatable pain, and nerve damage. This procedure could be partial removal of frenum or repositioning of the frenum termed as “frenoplasty” or “frenotomy”, and complete removal of frenum termed as “frenectomy”. Laser frenectomy results are in a lower risk of relapse, such as adhesion, and hence the prognosis is superior to those treated by traditional methods. This article highlights the advantages of using lasers as a treatment option for lingual frenectomy and aftercare with speech therapy for rehabilitation of the patients.

Keywords: Articulation disorders, Frenectomy, Frenoplasty, Frenotomy, Frenulectomy, Frenulotomy, Lingual frenum, Speech therapy.

How to cite this article: Iyer VH, Sudarsan S. A Comprehensive Treatment Protocol for Lingual Frenectomy with Combination of Lasers and Speech Therapy: Two Case Reports. Int J Laser Dent 2015;5(1):12-21.

Source of support: Nil

Conflict of interest: None

 
6.  Review Article
Low-level Laser Therapy: A Literature Review
Bhagyashree R Kohale, Amit A Agrawal, Amit B Sope, Kshitij V Pardeshi, Chetan P Raut
[Year:2015] [Month:January-April] [Volume:5 ] [Number:1] [Pages:32] [Pages No:1-5] [No of Hits : 1177]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1064 | FREE

ABSTRACT

LASER is an acronym for “Light Amplification by Stimulated Emission of Radiation.” The arena of lasers has expanded to include light-emitting diodes and other sources of light. Various wavelengths used are in the range of red and near infrared spectrum. Each wavelength has a unique interaction with the respective target tissues. High doses of laser have certain drawbacks and, in order to overcome these issues, widespread research is going on low-level laser therapy (LLLT). Low-level laser therapy results in direct biostimulation action on various cells of the body. It is reported that LLLT could enhance the process of wound healing and also has stimulating effects on bone cells and can hasten the repair process of the bone. In spite of many reports of affirmative findings from experiments conducted in vitro, in animal models, and in randomized controlled clinical trials, the effects of LLLT remain debatable. On the contrary, additional research still needs to be done in order to check the efficacy for periodontal treatment. This article focuses on the effects of LLLT on various tissues, its dosage, mechanisms of action, and applications in the field of dentistry.

Keywords: Biostimulation, Low-level laser therapy, Wound healing.

How to cite this article: Kohale BR, Agrawal AA, Sope AB, Pardeshi KV, Raut CP. Low-level Laser Therapy: A Literature Review. Int J Laser Dent 2015;5(1):1-5.

Source of support: Nil

Conflict of interest: None

 
7.  Case Report
Management of Hyperpigmentation of Lips with 940 nm Diode Laser: Two Case Reports
Vidyaa Hari Iyer, Sana Farista
[Year:2014] [Month:January-April] [Volume:4 ] [Number:1] [Pages:42] [Pages No:31-38] [No of Hits : 5731]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1052 | FREE

ABSTRACT

Lip hyperpigmentation is an issue with the young adults when the dark brown patch on the lips makes an unsightly appearance. The laser energy is selectively absorbed by the melanin that causes pigmentation. This causes a photothermal ablation of melanocytes which leads to its disruption and subsequent removal by the body’s immune system. It generally takes one to three treatments to lighten or remove unwanted pigmentation with laser. With most laser lip pigmentation removal, the pigmentation becomes darker for approximately 1 week and then flakes off. The treatments are spaced at least 1 month apart. There is also usually some redness and mild swelling in the treatment areas for a few days after treatment. The previous studies reported 100% clearance of pigmentation of the lips with a single laser treatment, and recurrence was not observed even after 6 months. This article highlights the use of 940 nm diode dental lasers for lip depigmentation procedure. Dental diode lasers have become a universal alternative tool for esthetic corrections of the oral cavity.

Keywords: Laser depigmentation, Melasma, Lip depigmentation, Diode lasers, Esthetic correction, Melanin, Hyperpigmentation.

How to cite this article:Iyer VH, Farista S. Management of Hyperpigmentation of Lips with 940 nm Diode Laser: Two Case Reports. Int J Laser Dent 2014;4(1):31-38.

Source of support: Nil

Conflict of interest: None declared

 
8.  Research Article
In vitro Analysis Comparing Efficacy of Lasers and Desensitizing Agents on Dentin Tubule Occlusion: A Scanning Electron Microscope Study
Arulmozhi Nandakumar, Vidyaa Hari Iyer
[Year:2014] [Month:January-April] [Volume:4 ] [Number:1] [Pages:42] [Pages No:1-7] [No of Hits : 3163]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1048 | FREE

ABSTRACT

Dentinal hypersensitivity (DH), one of the commonest causes of dental pain, arises from exposure of dentinal tubules most commonly in the cervical region of the buccal and facial surfaces of the tooth in response to typically thermal, evaporative, tactile, osmotic or chemical stimulus. This study aims at evaluating the efficacy of Er,Cr:YSGG (dual lasers - hard and soft tissue) and diode lasers (soft tissue lasers) against clinically proven dentifrices prescribed by dentists, easily available over the counter, in treating DH. In 60 recently extracted human teeth, cervical cavities were prepared and etched with 17% EDTA to expose the tubules and eliminate smear layer. The teeth were further divided into groups: Er,Cr:YSGG laser, diode laser and commonly used dentifrices chosen on the basis of previous studies. After treatment, the teeth were subjected for scanning electron microscope (SEM) analysis on the same day for quantitative and qualitative analysis of the specimens. Quantitative analysis of the SEM images was done using image analysis software. Er,Cr:YSGG showed superior results in terms of number of tubules per millimeter square, tubule diameter and tubular area. Laser treatment of exposed dentinal tubules with Er,Cr:YSGG promises a noninvasive, pain free and relatively safe treatment option.

Keywords: Er,Cr:YSGG laser, Dentinal hypersensitivity, Scanning electron microscope, Dentinal tubule occlusion, Diode lasers, Pain-free dentistry.

How to cite this article: Nandakumar A, Iyer VH. In vitro Analysis Comparing Efficacy of Lasers and Desensitizing Agents on Dentin Tubule Occlusion: A Scanning Electron Microscope Study. Int J Laser Dent 2014;4(1):1-7.

Source of support: Nil

Conflict of interest: None declared

 
9.  Review Article
Photodynamic Therapy: A Targeted Therapy in Periodontics
Nubesh Khan S, Fahanna Beegum
[Year:2014] [Month:January-April] [Volume:4 ] [Number:1] [Pages:42] [Pages No:26-30] [No of Hits : 2637]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1051 | FREE

ABSTRACT

Advances in research are provided by techniques that were forgotten for many decades and innovative procedures to clinical application. With the increase of microbial resistance and development of lighting devices with safe and accurate delivery of energy, today professionals can count on therapies to manage pathogens in different fields of dentistry, especially periodontics and peri-implantitis. When the therapeutic resources have been exhausted, other alternatives can be considered, as the antimicrobial photodynamic therapy. Photodynamic therapy is a novel noninvasive therapeutic approach with increased pathogen and site specificity. Photodynamic therapy involves use of photosensitizer that is activated by exposure to light of specific wavelength to form toxic oxygen species thereby causing localized photo damage and cell death. Application of photodynamic therapy in periodontics, such as pocket debridement, gingivitis, aggressive periodontitis continue to evolve into a mature clinical treatment modality, and is considered as a promising novel approach for eradicating pathogenic bacteria in periodontitis.

Keywords: Antimicrobial photodynamic therapy, Laser, Periodontitis, Photosensitizer.

How to cite this article: Khan NS, Beegum F. Photodynamic Therapy: A Targeted Therapy in Periodontics. Int J Laser Dent 2014;4(1):26-30.

Source of support: Nil

Conflict of interest: None declared

 
10.  Case Report
Er,Cr:YSGG Laser as a Treatment Option for Operculectomy in Children
Vidyaa Hari Iyer
[Year:2014] [Month:January-April] [Volume:4 ] [Number:1] [Pages:42] [Pages No:39-42] [No of Hits : 2635]
Full Text PDF | Abstract | DOI : 10.5005/jp-journals-10022-1053 | FREE

ABSTRACT

Erbium lasers belong to the mid infrared nonionizing part of the electromagnetic spectrum. Erbium family of lasers consists of Er,Cr:YSGG - 2780 nm wavelength and Er:YAG - 2940 nm wavelength. These wavelengths are absorbed better by hydroxyapatite and water which are the chromophore in the host tissue. The thick soft tissue covering an erupting tooth is generally treated by conventional surgical excision. Another option available is excision using lasers. Various soft tissue lasers, such as diode laser, have been used for this procedure. A new addition to this generation of lasers is Er,Cr:YSGG laser. This article highlights the use of Er,Cr:YSGG in treatment of operculectomy in children. The child did not experience any pain even without the administration of injections, or bleeding during the procedure and was immensely impressed with the excellent healing outcome.

Keywords: Erbium laser, Hydrophotonic effect, Painfree dentistry, Pediatric operculectomy procedure.

How to cite this article: Iyer VH. Er,Cr:YSGG Laser as a Treatment Option for Operculectomy in Children. Int J Laser Dent 2014;4(1):39-42.

Source of support: Nil

Conflict of interest: None declared

 
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