DENTAL SURGERY PASTES — group of pharmaceuticals in the form of the pastes applied in stomatology at dental care. Various on structure 3. items use for elimination of a hyperesthesia of dentine, as a lining under constant seals, for treatment of the inflamed pulp or for its nekrotization, and also for filling of channels of teeth at treatment pulpitis (see) and periodontitis (see).
At a hyperesthesia of dentine usually apply fluoric paste to removal of morbidity of teeth — nafestezin (Natrii fluoridi puri 3,0; Glycerini 1,0) or alkaline paste (Kalii carbonatis 2,0; Natrii hydrocarbonatis 5,0; Glycerini q. s.), etc. During the sealing of deep caries (see. Caries of tooth ) in quality to lay down. laying on a bottom of a carious cavity imposes evgenoltimolovy paste (Thymoli 0,1; Eugenoli 10,0; Zinci oxydi q. s.) or the paste containing lime hydrate (kalmetsin, calcine, etc.). These pastes promote formation of replaceable dentine and its mineralization.
Pastes on the basis of lime hydrate apply also to treatment of the inflamed pulp — a so-called biological method of treatment; as antibacterial agent enter antibiotics, streptocides into composition of these pastes.
Arsenous paste is applied to a nekrotization of the inflamed pulp (Acidi arsenicosi 3,0; Thymoli; Cocaini hydrochloridi aa 0,5).
3. the item for sealing of root channels on their physicomechanical properties can be divided on hardening and not hardening. The hardening pastes prepare on water solutions of novocaine, chloride calcium or on artificial pitches (phenolic, epoxy, etc.). For providing a soft consistence of not hardening pastes use glycerin, vaseline or camphoric oil as plasticizers. 3. for root channels possess bactericidal action at the expense of the antiseptic agents which are contained in them; as a firm basis zinc oxide, white clay or artificial dentine (sulphatic cement) are used.
The antiseptic agents which are a part of pastes — formalin, paraformaldehyde, phenol, resorcin-formalin — have mummificating properties, and others — the iodoform, methyl-isopropyl phenol, eugenol and other aromatic oils — have disinfecting effect. Antiseptic 3. items are available on sale in finished form or can be prepared just before sealing of teeth.
T. F. Strelyukhina (1969) established that bactericidal action of the majority 3. the item remains only during 3 — 4 weeks. Permeability for an intercellular lymph not hardening 3. items, their rassasyvaniye in root channels, and also the short term of bactericidal action limit their use for sealing of root channels of second teeth, however they with success are applied to sealing of channels of milk teeth and second teeth with incompleteness the created roots (at children).
The impregnating liquids and pastes prepared on the basis of antiseptic agents apply to treatment of multi-rooted teeth with channels, unavailable to tool processing. Albrecht's liquid, bakelite mixes, Ribler's paste belong to the pitches which are polymerized in root channels at body temperature; advantage them is steady bactericidal action and ability to diffuse deeply to hardly accessible parts of canals. Shortcoming 3. the item of this group is irritant action on fabric of a parodont at removal of paste for an apical opening of a root and coloring of solid tissues of tooth (resorcin - formalin, silver, paratsin, etc.). For sealing of root channels according to requirements of unirritating therapy pastes on the basis of lime hydrate are offered, and also tsebanit ready pastes, endodent, etc.
See also Sealing of teeth .
Bibliography: The medicines used in dental practice under the editorship of M. V. Komendantova, page of 14%: M. 1972; Strelyukhina T. F. Dental sealing materials, Page 118, L., 1969.
M. I. Groshikov.