We are using cookies to implement functions like login, shopping cart or language selection for this website. Furthermore we use Google Analytics to create anonymized statistical reports of the usage which creates Cookies too. You will find more information in our privacy policy.
OK, I agree I do not want Google Analytics-Cookies
Quintessence International
Login:
username:

password:

Plattform:

Forgotten password?

Registration

Quintessence Int 37 (2006), No. 6     3. May 2006
Quintessence Int 37 (2006), No. 6  (03.05.2006)

Page 469-476, PubMed:16752703


Interstitial tissue pressure associated with dental injections: A clinical study
Hochmann, Mark N./Friedmann, Mark J./Williams, Wayne/Hochman, Claudia B.
Objectives: The purpose was to measure the interstitial fluid pressure generated from tissue resistance during administration of local anesthetic solution at 4 anatomic locations within the oral cavity and to determine whether differences in soft tissue density affect interstitial fluid pressure when anesthetic solution is administered at a fixed flow rate.
Method and Materials: A computer-controlled local anesthetic delivery device (CompuFlo, Milestone Scientific) that records and stores pressure data during a subcutaneous injection was used. Subjects consisted of adult patients seeking routine dental care that required local anesthesia. A total of 200 injections were administered and fluid pressure readings recorded. Injections were divided into 4 groups of 50: group 1-intraligamentary injections (PDL); group 2-palatal injection, anterior middle superior alveolar nerve block; group 3-supraperiosteal buccal infiltrations, and group 4-inferior alveolar nerve blocks. For all injections 1 cartridge (1.8 mL) of lidocaine containing 1:100,000 concentration of epinephrine was administered at a fixed flow rate of 0.005 mL/sec.
Results: One-way analysis of variance (ANOVA) revealed that the data were statistically significant (P < .001), with corresponding mean values as follows: group 1, 293.98 psi; group 2, 68.16 psi; group 3, 11.50 psi, and group 4, 9.76 psi (F-ratio of 2371.933). Groups 1 and 2 were different from all other groups; groups 3 and 4 were not statistically different from each other.
Conclusion: Interstitial resistance to fluid pressure can be measured during administration of 4 different local anesthetic injections used in dentistry. Based on fluid pressure and tissue resistance characteristics, a soft tissue density classification was defined.

Keywords: computer-controlled drug delivery system, computer-controlled local anesthetic delivery system, dental, injection pressure, local anesthesia, local anesthetic technique, tissue pressure