Zirconium is a hard, silvery metal that is very resistant to corrosion. Zirconium orthopedic hip replacements have shown superior wear-resistance over other systems; however, risk of catastrophic fracture remains a concern. In dentistry, zirconium has been widely adopted for endosseous implants, implant abutments, and all-ceramic crowns. Because of an increasing demand for esthetically pleasing dental restorations, zirconia-based ceramic restorations have become one of the dominant restorative choices.

Cobalt is a lustrous, silvery-blue magnetic metal. Cobalt is a bioessential element due to its location at the centre of vitamin B12. Vitamin B12 plays a number of vital roles in the physiology of the human body. Cobalt is also important in treatments of radiotherapy in the form of the isotope 60Co. Other medical uses of cobalt include the detection of tumours and metastases, sterilisation of surgical equipment and the imaging of damage to the brain. Cobalt is also used in the prosthetic alloys sector, being utilised in hip, knee and dental replacements. There are inorganic cobalt complexes that elicit biological effects with potential use as pharmaceutical agents. Three classes of cobalt complexes are present: 1) complexes that directly act on biomolecules through ligand exchange, 2) complexes that modify the activity of ligated drugs and 3) complexes that are activated by bioreduction to either (I) yield a cobalt effector species or (II) release a small molecule drug. Cobalt can cause a distinctive, rapidly progressive and reversible depression of cardiac systolic function, which is readily distinguished from other causes of cardiomyopathy.

Bismuth tartrate was used for the treatment of syphilis. There are death reports associated with bismuth compounds usage in syphilis treatment.

3,3′,4′,5-Tetrachlorosalicylanilide (TCSA) is an apoptosis-inducing photosensitizer for keratinocytes. It was studied as a causative agent of photo contact dermatitis and drug photosensitivity. TCSA was used as a metabolic uncoupler in activated sludge biological wastewater treatment systems to reduce the amount of the produced sludge.

Tribromsalan (trade name Temasept IV) is a member of brominated salicylanilides chemical family. Was initially registered in 1964 manufactured by Hexcel Corporation, Sherwin Williams Chemicals. It is a pesticide type with antimicrobial and preservative features found its application in hard surfaces, laundry, textiles, and manufactured products. Types of tribromsalan formulations include solid, solutions, and sprays and its usual carrier is soap. Limited exposure is possible based on the registered uses of these products as disinfectants, laundry additives, textile preservatives, and manufactured products and do not include direct application to a food or feed crop. In 1974 FDA directed the removal of tribromsalan drug products from the market because it was found to make skin extrasensitive to light. For the same reason it was forbidden in Europe since the 1970s. Since 1982 the OTC topical antimicrobial drug products rulemaking was reopened and included tribromsalan in a list of antimicrobial OTC Drug Products. At present tribromsalan is considered an antiseptic active ingredient eligible for the OTC use as a consumer antiseptic hand and body wash drug product. It was reported that tribromsalan, inhibits NF-kappaB signaling via inhibition of IkappaBalpha phosphorylation with IC50 of 7.9 uM. This finding provides new information on activities and mechanisms of action that may suggest mechanisms of potential novel applications in cancer treatment of such drugs as tribromsalan.

Dichlorophene is a halogenated phenolic compound that functions as a bacteriocide and fungicide in cosmetics. Dichlorophene was reported to be used in a total of five cosmetic formulations at concentrations of 0% to 1.0%. Dichlorophen is used in the treatment of tapeworm infestation in man and animals and is the basis of a preparation against athlete’s foot. As a fungicide and bactericide it is recommended for the protection of textiles and materials including horticultural benches and equipment against moulds and algae.

Dibromsalan (4',5-dibromosalicylanilide) is a disinfectant. Dibromsalan is a halogenated phenol derivative chemically related to bithionol and tetrachlorosalicylanilide (TCSA). It has antimicrobial properties. It was an ingredient of some commercial soaps. It was withdrawn from the market for reasons of safety. Dibromsalan was shown to cause photodermatitis.

D-(-)-tartaric acid is isomer of tartaric acid, that industrially produced in the largest amounts. D-(-)-Tartaric acid may be used in the preparation of enantiospecific homochiral cis-4-formyl β-lactams. It may also be used as a starting material in the synthesis of D-erythro-sphingosine and L-lyxo-phytosphingosine. D-(-)-tartaric acid is widely used as an acidizing agent for beverages and other foods, and this use is similar to citric acid. Tartaric acid can be used as an acid dye mordant when it is combined with tannin. It is also used for some development and fixing operations in the photographic industry. D-(-)-Tartaric Acid is used in the preparation of synthetic analgesics. Tartaric acid is metabolically inert in the human body. When taken by mouth, only about 20% of ingested tartrate is eliminated in the urine; the remainder is not absorbed as such since it is destroyed in the intestinal tract by bacterial action. Sodium tartrate in daily doses of up to 10 or even 20 g has been used in medical practice as a laxative.

Ozone, a gas, is made by three oxygen atoms. It is used for different procedures. Ozone therapy is used to treat a wide range of diseases and seems to be particularly useful in the treatment of many chronic diseases. It acts via the controlled oxidative stress that promotes an up-regulation of the antioxidant system and a modulation of the immune system. Ozone therapy doesn’t have any side effect and was useful in fibromyalgia management, where the employed therapies are very often ineffective. Ozone therapy is also going to be studied in phase III clinical trials to standard management of patients with advanced ischemic heart disease. Besides, ozone therapy was studying for the treatment of chronic hepatitis B.