Assessment of anesthetic properties and pain during needleless jet injection anesthesia: a randomized clinical trial

Abstract

Pain due to administration of local anesthetics is the primary reason for patients' fear and anxiety, and various methods are used to minimize it. This study aimed to measure the degree of pain during administration of anesthesia and determine the latency time and duration of pulpal anesthesia using two anesthetic methods in the maxilla. Materials and Methods: A randomized, single-blind, split-mouth clinical trial was conducted with 41 volunteers who required class I restorations in the maxillary first molars. Local anesthesia was administered with a needleless jet injection system (experimental group) or with a carpule syringe (control) using a 30-gauge short needle. The method of anesthesia and laterality of the maxilla were randomized. A pulp electric tester measured the latency time and duration of anesthesia in the second molar. Visual analogue scale (VAS) was used to measure the degree of pain during the anesthetic method. Data were tabulated and then analyzed by a statistician. The t-test was used to analyze the differences between the groups for basal electrical stimulation. Duration of anesthesia and degree of pain were compared using the Mann-Whitney test. A 5% significance level was considered. Results: There was no statistical difference in the basal electrical stimulation threshold (mA) and degree of pain between the two methods of anesthesia (p>0.05). Latency time was 2 minutes for all subjects. The duration of pulpal anesthesia showed no statistical difference (minutes) between the two methods (p<0.001), with a longer duration for the traditional method of anesthesia (median of 40 minutes). Conclusions: The two anesthetics methods did not differ concerning the pain experienced during anesthesia. Latency lasted 2 minutes for all subjects; the traditional infiltration anesthesia resulted in a longer anesthetic duration compared with the needleless jet injection.

Anestesia dental local sin aguja: Una revisión integrativa de la literatura.

“…Procedimientos restauradores simples, como clase I y II se pueden completar cómodamente con anestesia a presión, siempre que el procedimiento se finalice en 20 a 25 minutos, lo cual puede estar supeditado a la habilidad y experiencia del operador 20, . 24 Este sistema también podría usarse para la colocación de hilos de retracción, de grapas para dique de goma y para la cementación de coronas y carillas 20 .…”

Psychological Factors in Dental Patient Care: Odontophobia

“…It is true that the dentist intervenes in a particular area of the body, the mouth. A reason that explains the fear of the dentist is given by the peculiarity of the instruments used that undoubtedly can represent anxiety-provoking stimuli, such as the anesthesia syringe [3], the noisy drill, a low speed micromotor, or an ultrasonic scaler that produces a noise [4]. The most statistically stressful experiences are tooth extractions and surgery under local anesthesia [5].…”

Milestones of Dentistry: Advent of Anesthetics in Oral Surgery

“…In 1884, cocaine began to be used as an anesthetic in dentistry. Late, in the 21st century, novocaine was introduced [11,12].…”

“…Implant-prosthetic rehabilitation, which improves the quality of life of our patients today [15][16][17][18], in the absence of anesthetic techniques would be impossible. It is necessary to consider that all pharmacological therapies today are further targeted at the clinical conditions of patients, in some cases primary pathologies make different administrations of some drugs or anesthetics different, or even the state of pregnancy [12,19]. Nowadays local anesthesia in dentistry involves blocking a small or large nerve termination through contact with the active ingredient.…”

“…Finally, bupivacaine, a molecule chemically similar to mepivacaine, but with a high liposolubility, is a long-lasting local anesthetic used at much lower concentrations. With an onset that is on average slower than the norm, it is particularly useful for long and/or long-term postoperative pain procedures [11,12].…”