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A clinical comparison between maxillary and mandibular posterior teeth using local anesthesia and normal saline by the periodontal ligament injection (An in vivo study)

Authors: Majidah K.W. AL-Hashimi ماجدة الهاشمي --- Raad S. Al-Doori رعد الدوري
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: special issue 1 Pages: 18-23
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Local anesthesia is the primary method used in dentistry to control patients’ pain. However, even in thepresence of adequate soft tissue anesthesia, there may be incomplete pulpal anesthesia. This is particularly true inthe mandible where obtaining profound pulpal anesthesia may be difficult. The periodontal ligament injection hasreceived much attention in the dental literatures. lntraligamentary anesthesia has been advocated as a primary anda supplemental injection technique. The purpose of this study is to evaluate, with electrical pulp tester, the anestheticefficacy of the periodontal ligament injection using 2% Lidocaine with 1:80000 epinephrine and normal saline in fortyvolunteers. The success rate was defined as no patient’s response to the maximum output of an electrical pulptester. Also pain rating during initial needle penetration and injection of solution were compared.Material and method: Forty adult volunteers participated in this study. The subjects were divided into four groups (10subjects each): Group Ia: each subject received a periodontal ligament injection in mandibular first premolar andfirst molar right or left side with Lidocaine injection and pulp tested each minute by EPT and Ethyl chloride. Group 1b:each subject received a periodontal ligament injection in mandibular first premolar and first molar right or left sidewith normal saline injection and pulp tested each minute by EPT and Ethyl chloride. Group IIa: each subject receiveda periodontal ligament injection in maxillary first premolar and first molar right or left side with Lidocaine injection andpulp tested each minute by EPT and Ethyl chloride. Group IIb: each subject received a periodontal ligamentinjection in maxillary first premolar and first molar right or left side with normal saline injection and pulp tested eachminute by EPT and Ethyl chloride.Results: The results showed that the duration of profound pulpal anesthesia, using 2% Lidocaine with 1:80000epinephrine, was 10 minutes and injection of anesthetic solution and normal saline in clinically healthy teeth wereonly mildly discomforting. The periodontal ligament injection using normal saline was not effective in producinganesthesia. A conclusion was drawn from the study that the periodontal ligament injection can be used effectively,as a primary injection technique, to anesthetize mandibular posterior teeth especially the first molars

Keywords

Pain --- PDL --- local anesthesia

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