Effect of r-epinephrine-impregnated retraction cord on the cardiovascular system

Houston, John B.; Appleby, Ralph C.; DeCounter, Leo; Callaghan, Nathan; Funk, David C.

doi:10.1016/0022-3913(70)90077-6

Cited by 26 publications

(3 citation statements)

References 3 publications

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“…The action of sitting down in the dental chair increased the heart rate considerably (+12 bpm); the effect on the systolic blood pressure was limited (+2 mmHg) (8). A short talk with the dentist, during which the patient was asked to describe the dental problem, increased both systolic and diastolic blood pressure by 5-6 mmHg (9).…”

Section: Anticipation Of Dentai Treatmentmentioning

confidence: 99%

Cardiovascular Responses Induced By Dental Treatment

Brand

1997

Australian Endodontic Newsletter

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Brand HS, Abraham-lnpijn L: Cardiovascular responses induced by dental treatment.Changes in mean heart rate and mean systolic and diastolic blood pressure are induced by both the patient's anticipation of scheduled treatment and the actual dental treatment itself. Significant changes have been observed before application of a local anesthetic, during restorative treatment, during extractions, and when epinephrine-impregnated retraction cords were used. These cardiovascular responses may vary according to the local anesthetic used and the choice of vasoconstrictor. The individual changes in heart rate and blood pressure are affected by pain and such individual factors as age, gender, hypertension, dental experience, and psychological responses. Although for the most part the cardiovascular changes induced by dental treatment are limited and within the normal physiological variation, this review stresses the importance of eliminating pain and minimizing patient anxiety.

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Section: Anticipation Of Dentai Treatmentmentioning

confidence: 99%

Cardiovascular Responses Induced By Dental Treatment

Brand

1997

Australian Endodontic Newsletter

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“…Today, gingival displacement procedures have been evolved from copper tubes and metal crowns filled with thermoplastic material to the present use of cotton cords and chemical agents as the most commonly used form of gingival displacement. [ 3 10 11 12 ]…”

Section: Discussionmentioning

confidence: 99%

A comparative evaluation of amount of gingival displacement produced by four different gingival displacement agents – Anin vivo study

Kesari

Karani

Mistry

et al. 2019

J Indian Prosthodont Soc

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Aim: The aim of this study was to compare and evaluate the efficacy of ViscoStat clear, Vasozine, and Racegel (with and without cord) with respect to the amount of lateral gingival displacement produced by them. Settings and Design: Comparative - In vivo study. Material and Methods: Thirty consented volunteers were selected in the age group of 18–22 years. Maxillary right first premolar and lateral incisor and maxillary left central incisor and canine were selected for each individual. A composite resin standard reference point was made two millimeters below the gingival margin on the midsection of the labial surface of each tooth. By simple random sampling, the agents (ViscoStat clear, Vasozine, and Racegel with cord and Racegel without cord) were used for gingival displacement on each of the selected teeth. Pre- and postgingival displacement impressions were made with medium-body polyvinyl siloxane impression material. Three-millimeter thick buccolingual slice sections were obtained of the models and measured under a stereo microscope (×20 magnification), and the amount of displacement was calculated. Statistical Analysis used: The Kruskal–Wallis test and the Mann–Whitney U-test were used for comparison between the amounts of gingival displacement produced by them. Results: Mean displacement produced (in mm 2 ) by Racegel with cord, tetrahydrozoline, ViscoStat clear, and Racegel is 0.2256, 0.2158, 0.2069, and 0.1414, respectively. Conclusions: The largest mean gingival displacement was produced by Racegel with cord (0.2256 mm 2 ) and lowest by Racegel without cord (0.1414 mm 2 ). There was no significant statistical difference in the amount of gingival displacement produced between the four agents.

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“…While some tissue damage was caused by 5–10 min exposure to cords impregnated with racemic adrenaline, cords containing alum and aluminium chloride healed in approximately 10 days (Harrison, 1961; Nemetz, 1974). Accordingly, there were reports suggesting that racemic adrenaline‐containing cords should be used cautiously (Woycheshim, 1964; Pogue & Harrison, 1967; Houston et al ., 1970; Goldberg et al ., 1971; Ciarlone & Pashley, 1992). Actual exposure time is bound to vary markedly in vivo , for example, between 2 and 30 min (Harrison, 1961; Anneroth & Goransson, 1965).…”

Section: Introductionmentioning

confidence: 99%

Effects of diameter, chemical impregnation and hydration on the tensile strength of gingival retraction cords

Nieto-Martínez

Maupomé

Barceló-Santana

2001

J of Oral Rehabilitation

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Gingival retraction cords are useful clinical aids but little information is available regarding desirable physical features that would preserve their integrity under tensile forces. The study aimed to establish under experimental conditions the extent to which tensile strength is affected by variation in cord diameter; impregnation with ferric sulphate (FS) or aluminium sulphate (AS); and cord hydration (wet/dry). Commercial cords and standard cotton cords were assayed in an Instron 1137 machine. Data were analysed using t-test, and one- and four-way ANOVA. Results indicated that tensile strength for 200 commercial cords was 1.4950 +/- 1.032 kg; and for 560 cotton cords was 1.2964 +/- 1.4560 kg. Cord hydration had no significant effect on tensile strength, whereas impregnation with AS or FS, a smaller diameter, and/or being a cotton cord decreased tensile strength (P < 0.001). Bivariate analyses showed that hydrated commercial cords had higher tensile strength than dry specimens; hydrated or dry cotton cords were not different. The FS-impregnated cotton cords had lower tensile strength than AS-impregnated or control cords, and the effect was greater at higher FS concentrations. This study is one of the first evaluations of the physical properties of cords, highlighting characteristics that may minimize the risk of tearing.

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Effect of r-epinephrine-impregnated retraction cord on the cardiovascular system

Cited by 26 publications

References 3 publications

Cardiovascular Responses Induced By Dental Treatment

Cardiovascular Responses Induced By Dental Treatment

A comparative evaluation of amount of gingival displacement produced by four different gingival displacement agents – Anin vivo study

Effects of diameter, chemical impregnation and hydration on the tensile strength of gingival retraction cords

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