In vitro studies were made of physico-chemical properties effects of periodontal dressing materials (Septo-pack, COE-pak [Hard & Fast set]).
The examination included: 1. Absorption test, 2. Solubility test, 3. Consistency test, 4. Pigmentation test, 5. Temperature test, and 6. pH.
The results obtained were as follows:
1. Absorption test:
Septo-pack showed less degree of absorption day by day.
Both COE-pak [Hard & Fast set] and COE-pak showed almost the same in absorption test.
2. Solubility test:
In the ratio of solubility, Septo-pack showed about a quarter of Peripac.
Both COE-pak [Hard & Fast set] and COE-pak showed almost the same in solubility test.
3. Consistency test:
Consistency of Septo-pack after immediately mixing was similar to that of Peripac mixing after five minutes.
COE-pak [Hard & Fast set] showed a less degree than COE-pak.
4. Pigmentation test:
Septo-pack showed similar to Peripac, and COE-pak [Hard & Fast set] showed similar to COE-pak.
5. Temperature test:
Septo-pack showed 1-2°C less than Peripac.
COE-pak [Hard & Fast set] showed 1-2°C higher than COE-pak.
6. Change of pH:
Septo-pack was either acidic or neutral.
COE-pak [Hard & Fast set] shifted to alkalinity.
