EurekaMag
+ Translate
+ Most Popular
Gaucher's disease;thirty-two years experience at Siriraj Hospital
A study of Macrobathra Meyrick from China (Lepidoptera, Cosmopterigidae)
First occurrence in ores of tetragonal chalcocite
Effects of trace element nutrition on sleep patterns in adult women
N.Z. range management guidelines. 2. Design of grazing management systems for tussock country
A case of lipoma of the esophagus
A revision of world Acanthosomatidae (Heteroptera: Pentatomidae): keys to and descriptions of subfamilies, tribes and genera, with designation of types
Life history of the coronate scyphozoan Linuche unguiculata (Swartz, 1788)
Perceptual restoration of obliterated sounds
Mutagenicity studies on two chromium(III) coordination compounds
The formation of the skeleton. I. Growth of a long bone. 1st appearance of a center of calcification
Leucopenia and abnormal liver function in travellers on malaria chemoprophylaxis
The joint commission: four key root causes loom large in sentinel event data
Treatment of vitiligo with topical 15% lactic acid solution in combination with ultra violet-A
Behaviour of dairy cows within three hours after feed supply: I. Influence of housing type and time elapsing after feed supply
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Management and control of patients with type 2 diabetes mellitus in Lebanon: results from the International Diabetes Management Practices Study (IDMPS)
The diet composition and nutritional knowledge of patients with anorexia nervosa
Physoporella croatica Herak, 1958 of the Slovak karst Anisian (Slovakia, the West Carpathians Mts.)
Bright lights, big noise. How effective are vehicle warning systems?
Ein Plesiosaurier-Rest mit Magensteinen aus mittlerem Lias von Quedlinburg
Incidence of Chlamydia trachomatis in patients with sterility
Monster soup: the microscope and Victorian fantasy
Preliminary tests with residual sprays against poultry lice
Duration of the life of plants in phylogeny

Permeability of root dentin to epinephrine released from gingival retraction cord


Permeability of root dentin to epinephrine released from gingival retraction cord



Operative Dentistry 17(3): 106-111



ISSN/ISBN: 0361-7734

PMID: 1437692

The permeation of racemic epinephrine across roots of human molar crown segments was studied in vitro. Permeation was measured in the presence of cementum, with cementum removed (dentin exposed), and with and without dentin smear layers. Epinephrine was initially detected at 10 minutes and reached a steady state in 70 minutes. Epinephrine flux (the product of concentration and the flow rate per unit of dentin surface area) significantly increased when both the cementum and dentin smear layers were removed. The T1/2 (half-time in minutes necessary to reach steady-state diffusion) was zero with intact cementum and increased to approximately 40 minutes in dentin with and without smear layers. This study suggests that the permeation of epinephrine across root surfaces is prevented by the presence of cementum and retarded by the presence of dentin smear layers. Also, the data suggest that root dentin is another source of absorption when epinephrine-impregnated retraction cord is applied to the gingival sulcus.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 040948246

Download citation: RISBibTeXText

Related references

Systemic hemodynamic effects of R-epinephrine gingival retraction cord in clinic patients. Journal of Oral Therapeutics and Pharmacology 2(6): 393-398, 1966

Plasma catecholamine and hemodynamic responses to the placement of epinephrine-impregnated gingival retraction cord. Oral Surgery Oral Medicine and Oral Pathology 58(5): 540-544, 1984

Determination of plasma catecholamines in dogs after experimental gingival retraction with epinephrine-impregnated cord. Archives of Oral Biology 32(3): 217-219, 1987

Gingival retraction. Behavior of gingival tissue when retracted with dry cotton thread, impregnated with racemic epinephrine crystals and soaked in racemic epinephrine solution. Revista Da Associacao Paulista de Cirurgioes Dentistas 31(4): 250-269, 1977

Gingival retraction paste versus gingival retraction cord for fixed prosthodontics: a systematic review. Shanghai Kou Qiang Yi Xue 22(4): 456-461, 2013

Arterial vs venous plasma epinephrine absorption following epinephrine impregnated dental retraction cord or epinephrine infusion. Journal of Molecular and Cellular Cardiology 21(Suppl. 2): S72, 1989

Regenerative Capacity of Leukocyte-rich and Platelet-rich Fibrin in Indirect Sinus Elevation Procedure May be Dependent on Model-Specific Modification of the Centrifugation Cycle. Contemporary Clinical Dentistry 10(3): 433-439, 2019

Gingival retraction and epinephrine. Journal of Hospital Dental Practice 11(1): 7-9, 1968

Epinephrine-free gingival retraction. Journal of Hospital Dental Practice 11(1): 10-11, 1968

Epinephrine containing gingival retraction cords--how safe are they?. Journal of the Nebraska Dental Association 52(3): 7-9, 1976

Epinephrine release from gingival retraction cords. Journal of Dental Research 65(SPEC ISSUE): 334, 1986

Epinephrine absorption from commercial gingival retraction cords in clinical patients. Journal of Prosthetic Dentistry 68(5): 761-765, 1992

Comparative Study on the Efficacy of Gingival Retraction using Polyvinyl Acetate Strips and Conventional Retraction Cord - An in Vivo Study. Journal of clinical and diagnostic research: JCDR 7(10): 2368-2371, 2013

Relationship between orthodontics root resorption following experimental tooth movement and the level of dentin sialoph-osphoprotein and dentin sialoprotein in gingival crevicular fluid. Hua Xi Kou Qiang Yi Xue Za Zhi 29(3): 294-298, 2011

Blood pressure responses to epinephrine-treated gingival retraction strings in the rhesus monkey. Journal of the American Dental Association 78(6): 1315-1319, 1969