PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Tooth Discoloration”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed1979

Evaluation of extrinsic tooth discoloration.

Extrinsic brown tooth discolorations are frequently detected in connection with antibacterial agents used for chemical plaque control. The present investigation confirmed the staining ability of an antibacterial quarternary ammonium salt, benzethoniumchloride, used as a 2% additive to a dentifrice. A weak chelator did not alter the discoloration tendency. Extrinsic discoloration was evaluated both by direct inspection, from color photographs and by using a microphotometric technique. The discoloration tendency was well demonstrated by all three techniques. Evaluation from the color photographs, however, may be preferable in epidemiological surveys while the microphotometric technique may possess certain advantages in detailed experimental discoloration studies.

Adult↗
PubMed1978

Extrinsic discoloration of teeth.

The majority of tooth discolorations are extrinsic in nature and appear as brown integuments. Various clinical indices and photometric techniques have been used for the evaluation of extrinsic discolorations. Smoking, tea or coffee consumption and increasing age are promoting factors and such discolorations are frequently seen in connection with oral use of antibacterial plaque-inhibiting mouthrinses. Chemical alteration of the acquired pellicle appears to be the major reason for these brown integuments.

Age Factors↗
PubMed1977

Tetracycline-induced extrinsic discoloration of the dentition.

Tetracycline, a broad-spectrum antibiotic, is known to cause intrinsic discoloration of the dentition. A case is being presented of extrinsic discoloration of the teeth associated with the use of this drug. This is believed to be the first such reported case in the literature. Possible mechanisms of how tetracycline may cause extrinsic tooth discoloration are discussed.

Adult↗
PubMed1977

Safety of Hibitane. II. Human experience.

Chlorhexidine has been widely used in medical practice since its introduction on to the marked in the early 1950s. Primarily it has been used for topical antisepsis, e.g. pre-surgery skin preparation, burns prophylaxis, and prior to obstetrical/gynaecological procedures. This extensive experience has demonstrated the virtual absence of sensitization and a low irritancy potential for the compound. Only one significant adverse effect has been identified during medical use, namely, the production of sensorineural deafness after direct instillation into the middle ear, a property shared by several commonly used antiseptics. The encouraging reports of the use of chlorhexidine for plaque control prompted further safety investigations. It has been shown that absorption after oral ingestion is very low, and long-term oral use has not produced changes in haematological and biochemical parameters. Occasional oral intolerance of mouthrinse formulations has been reported, although no histological abnormalities were present in gingival biopsies taken after 18 months' daily use. Very occasionally, a reversible swelling of the parotid glands has been reported after use of chlorhexidine in mouthrinse formulations, but not after other methods of administration. Tooth discoloration, which shows wide inter-individual variation is seen after all dental formulations. This undesirable cosmetic effect would appear to represent the only significant argument against everyday prophylactic oral use of chlorhexidine.

Administration, Oral↗
PubMed1975

The indications for the transplantation of maxillary canines in the light of 100 cases.

One hundred cases of autogenous transplantation of maxillary canines are reviewed and the results assessed. They were divided into Group A, 50 cases 3 to 10 years out of retention, and Froup B, 50 consecutive cases 1 to 3 years out of retention. If the criteria for success depended on a normal response to vitality test, 62 per cent of Group A and 24 per cent of Group B were successful. If a prognosis rating was used, 68 per cent of Group A and 72 per cent of Group B had a good prognosis.

Alveolar Process↗
PubMed1979

Prognosis of teeth involved in the line of mandibular fractures.

The management of teeth positioned in the line of mandibular jaw fractures was studied by a follow-up examination of 132 patients with mandibular fractures involving 185 teeth. The observation period varied from 1 to 3 years. The clinical and radiographic findings revealed complete recovery in 59% of the involved teeth. The degree of periodontal and pulpal complications were closely related to the displacement between the fragments and to the type of fracture. Six different fracture types were classified with regard to the extent of involvement of the tooth supporting tissue; 23% of the teeth which initially responded negatively to electric stimulation showed positive sensibility at the time of reexamination. Thus, a long time observation period is advisable with regard to the final outcome of the pulp damage. Conservative treatment of teeth involved in the line of mandibular fractures has a favorable prognosis especially if optimal reduction of the jaw fragments is achieved.

Dental Pulp Diseases↗
PubMed1979

Cervical enamel: a danger zone.

The British Standards Institutions's document (1974) recommending toothpaste specifications states that 'There is no evidence that any toothpaste ever produces a level of abrasion causing harm to dental enamel'. This paper questions the assumption that the enamel crown, especially at the cervical margin, is able to cope with modern dietary insult and a 'good' oral hygiene regimen, regardless of the enamel abrasivity of the dentifrice used. Once the enamel crown is breached the underlying dentine is sensitive and vulnerable to physical damage. In this work the potential rates of erosive and abrasive loss are related to the thickness of the protective enamel and to the relevance of fluoride treatments for adults. It is suggested that improvements in dental care and an increased tooth life expectancy now make the loss of tooth tissues at the cervical margin more important than is apparent at first sight.

Dental Enamel↗