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Research Journal of Pharmacy and Technology
Year : 2018, Volume : 11, Issue : 10
First page : ( 4257) Last page : ( 4262)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2018.00780.1

A Preliminary Study to compare The Pain Perception of Topical gel Versus Injected Local Infiltration/Block Anaesthesia during Non-Surgical Periodontal Therapy

Madhavan Sanjay1, Gajnedran Priya Lochana2,*

1Graduate Student, Saveetha Dental College, Saveetha University, Saveetha Institute of Medical and Technical Sciences, Chennai, India

2Senior Lecturer, Department of Periodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai

*Corresponding Author E-mail: priyalochana.87@gmail.com

Online published on 20 December, 2018.



To compare the pain perception level between topical benzocaine gel and injected lidocaine during scaling and root planing procedures.


To evaluate the effectiveness of topical gel versus injected local infiltration/block anaesthesia towards patients’ pain while undergoing periodontal procedures.

Materials and Methods

20 systemically healthy chronic periodontitis patients are to be selected from the outpatient department of Saveetha Dental College. Before scaling and root planing procedures, the dental quadrants on one side is assigned to receive topical 20% benzocaine gel or injection anaesthesia using 2% lidocaine. Quadrant on the other side will receive the alternative. Randomisation done using paper chit method. Pain perception and patients’ preference of choice of anaesthesia is to be assessed using the Visual Analogue Scale (VAS) and Numerical Rating Scale(NRS).


Injection anaesthesia was associated with a little higher preference in VAS scale and numerical rating scales than the gel group, but the variance was not statistically significant (P=0.506 and P=0.180).


Even though there was a slight preference to injection, it can be concluded that 20% benzocaine gel be a valued substitute for injected 2% lignocaine anaesthesia during SRP/curettage which can decrease the anxiety and distress associated with it.



Anaesthesia, benzocaine, lidocaine, root planing, scaling.


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