Abstract

The dental anesthesia sonophoresis device (DASD) is a novel device that is intended to reduce the discomfort associated with intraoral mucosa needle puncture. The DASD produces ultrasonic energy that provides a sonophoretic effect on the oral mucosa, generating microchannels through the lipids between the keratinized cells that make up the stratum corneum. Once the topical anesthetic has permeated the stratum corneum, it quickly diffuses through the soft tissue, desensitizing the nerve endings and reducing the perception of pain caused by needle penetration. The aim of this study is to evaluate whether topical anesthesia applied using the DASD will reduce the discomfort of the needle puncture when compared to the control device. A split-mouth model, using 50 healthy subjects with puncture site at the maxillary canine vestibule, was used for this study. Subjects received a needle puncture on both sides of the mouth. Prior to the needle puncture, there was randomized application of 5% lidocaine with the DASD and a control device. Subjects rated their discomfort after needle punctures utilizing the visual analog scale pain scoring system. There was no statistically significant difference in the pain perception using the DASD versus the control device.

Abstract

We compared the buccal infiltration of 4% articaine with 1 : 100,000 or 1 : 200,000 epinephrine without a palatal injection for the extraction of impacted maxillary third molars with chronic pericoronitis. This prospective, double-blind, controlled clinical trial involved 30 patients between the ages of 15 and 46 years who desired extraction of a partially impacted upper third molar with pericoronitis. Group 1 (15 patients) received 4% articaine with 1 : 100,000 epinephrine and group 2 (15 patients) received 4% articaine with 1 : 200,000 epinephrine by buccal infiltration. None of the patients in group 1 reported pain, but 3 patients in group 2 reported pain, which indicated a need for a supplementary palatal injection. The palatal injections were all successful in eliminating the pain. Two additional patients in group 2 experienced pain when the suture needle penetrated their palatal mucosa. Based on these results, 4% articaine with 1 : 100,000 epinephrine was found to be more effective for the removal of upper third molars in the presence of pericoronitis than 4% articaine hydrochloride with 1 : 200,000 epinephrine when only a buccal infiltration was used.

Abstract

The aim of this study was to investigate the correlation between dental anxiety, salivary cortisol, and salivary alpha amylase (sAA) levels. Furthermore, the aim was to look into individual differences such as age, race, gender, any existing pain, or traumatic dental experience and their effect on dental anxiety. This study followed a cross-sectional design and included a convenience sample of 46. Every patient was asked to complete the Dental Anxiety Scale (DAS) and a basic demographic/dental history questionnaire. A saliva sample, utilizing the method of passive drooling, was then collected in 2-mL cryovials. Samples were analyzed for salivary cortisol and sAA levels by Salimetrics. Significant associations were observed between DAS scores and presence of pain and history of traumatic dental experience. However, no significant correlations were observed between DAS, cortisol, and sAA levels. Our study reconfirms that dental anxiety is associated with presence of pain and a history of traumatic dental experience. On the other hand, our study was the first to our knowledge to test the correlation between the DAS and sAA; nevertheless, our results failed to show any significant correlation between dental anxiety, cortisol, and sAA levels.

Satoko Hoshiai ,

Address correspondence to: Satoko Hoshiai, Department of Dental Anesthesiology, The Nippon Dental University, School of Life Dentistry at Tokyo, 1-9-20, Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.

Yukako Tsutsui Katsuhisa Sunada

Dexmedetomidine Inhibit Compound Action Potentials Mediated through Alpha-2 Adrenalin Receptors

J Jpn Dent Soc Anesthesiol 2012;40:167–172.

It has been recently reported that dexmedetomidine (DEX), a selective alpha-2 adrenalin receptor agonist, prolongs the local anesthetic effects of lidocaine. Moreover, it has been reported that it controls the compound action potential (CAPs) amplitude of a rat sciatic nerve even when DEX acts alone.

However, whether DEX-induced CAPs control is mediated through

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The Effect of Sonophoresis on Topical Anesthesia: A Pilot Project

Abstract

Comparison of Buccal Infiltration of 4% Articaine With 1 : 100,000 and 1 : 200,000 Epinephrine for Extraction of Maxillary Third Molars With Pericoronitis: A Pilot Study

Abstract

Salivary Cortisol, Salivary Alpha Amylase, and the Dental Anxiety Scale

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JDSA Journal Abstracts

Dexmedetomidine Inhibit Compound Action Potentials Mediated through Alpha-2 Adrenalin Receptors

J Jpn Dent Soc Anesthesiol 2012;40:167–172.

Continuing Education Program

New FDA Black Box Warning for Codeine: How Will This Affect Dentists?

The Effect of Sonophoresis on Topical Anesthesia: A Pilot Project

Comparison of Buccal Infiltration of 4% Articaine With 1 : 100,000 and 1 : 200,000 Epinephrine for Extraction of Maxillary Third Molars With Pericoronitis: A Pilot Study

Salivary Cortisol, Salivary Alpha Amylase, and the Dental Anxiety Scale