Table 3.
Characteristics of the three patient groups who took part in the in vitro experiments
| Age, sex | Type of Pd containing material | Clinical symptoms | PT | Allergy history | |
|---|---|---|---|---|---|
| Pd | Ni | ||||
| Group 1 | |||||
| 63, f | Crown/bridges | Pain, burning, redness | + | ++ | AR |
| 75, m | Dental implant, crown/bridges | Pain gingivitis | + | ++ | None |
| 72, f | Dental implant | Pain, redness, gingivitis | ++ | + | AE |
| 71, f | Dental prosthesis | Pain, burning, erythema, gingivitis, gingiva swelling | + | ++ | None |
| 69, f | Dental implant, crown/bridges | Sensation of heat, pain, swelling | + | ++ | AR |
| 65, f | Dental implant | Itching, erythema | ++ | +++ | None |
| 57, f | Crown/bridges | Pain, erythema, gingivitis | + | ++ | None |
| 58, f | Dental implant, crown/bridges | Aphthae | +++ | + | None |
| 68, f | Crown, bridges | Gingivitis | ++ | +++ | AE |
| 57, f | Dental implant, crown/bridges | Pain, burning, redness, gingivitis | ++ | +++ | None |
| Group 2 | |||||
| 52, f | Dental implant, crown/bridges | Pain, gingivitis | + | − | AE, AR, AA |
| 63, f | Dental implant, crown/bridges | Pain, redness, gingivitis | + | − | AR |
| 41,f | Wedding ring | Eczema | ++ | − | None |
| Group 3 | |||||
| 64, f | Dental implants | Gingivitis | − | − | None |
| 68, m | Dental implant, crown/bridges | Pain, gingivitis | − | − | None |
| 67,f | Dental prosthesis | Burning | − | − | None |
| 58, m | Crown/bridges | Pain, burning | − | − | AR |
| 61, f | Dental prosthesis | Pain, gingivitis | − | − | None |
| 61, f | Dental implants | Gingivitis | − | − | None |
| 75, m | Dental implant, crown/bridges | Pain, gingivitis | − | − | None |
| 76, f | Dental prosthesis | Burning | − | − | None |
| 73, f | Dental prosthesis | Burning, erythema | − | − | None |
| 45, f | Dental implant, crown/bridges | Pain, burning erythema | − | − | AR |
Abbreviations: AA, allergic asthma; AE, atopic eczema, AR, allergic rhinitis; f, females; m, males.