Oil pulling is an ancient Ayurvedic practice involving swishing an edible oil, such as coconut or sesame oil, in the mouth for an extended period. Proponents suggest this mechanical action helps remove bacteria and improves oral hygiene. As the practice has regained popularity, a major concern is its compatibility with modern dental work, specifically permanent or temporary fillings. The central question is whether oil pulling can be safely integrated into a routine when the mouth contains restored dental surfaces.
The Mechanism of Risk
The primary risk oil pulling poses to dental restorations is mechanical, stemming from the prolonged and vigorous forces applied during the process. The technique involves forceful swishing and “pulling” the oil between the teeth, creating sustained pressure on existing dental work. This continuous stress, maintained over a typical 15 to 20-minute session, can challenge the integrity of the bond between the filling material and the natural tooth structure. If a restoration is compromised by decay underneath, has a marginal seal that is not fully intact, or is older, this mechanical strain can potentially loosen it.
Vulnerability of Different Dental Materials
The potential for a filling to be affected by oil pulling varies significantly based on the material used in the restoration.
Temporary Restorations
Temporary fillings and crowns present the highest risk because they are placed with non-permanent cement designed for easy removal by a dentist. The mechanical action of oil pulling can quickly compromise this weaker cement bond, leading to the dislodgment of the temporary restoration. It is strongly advised to avoid oil pulling entirely when any form of temporary dental work is in place.
Amalgam Fillings
For older amalgam, or silver, fillings, they are generally considered structurally stable and resistant to chemical interaction with oils. However, some practitioners express concern that mercury used in amalgam is lipophilic, meaning it attracts fats, and worry that oil pulling could increase the release of mercury vapors from the filling. While scientific evidence supporting a significant increase in mercury exposure from oil pulling is limited, older or larger amalgam restorations may still be vulnerable to mechanical dislodgement from vigorous swishing.
Composite Resin Fillings
Composite resin fillings, often called tooth-colored fillings, are bonded directly to the tooth structure and are generally safe from chemical degradation by the oils. These materials are resilient and resistant to most substances encountered in the oral cavity. The main threat to composite fillings remains mechanical, specifically the possibility of the suction and swishing forces weakening an already deficient or improperly cured bond. If the restoration is new and properly bonded, the chemical composition of the oil does not pose a threat.
Modifications for Safe Practice
Individuals who choose to continue oil pulling with dental restorations should implement specific modifications to minimize potential risks. The intensity of the practice must be significantly reduced, shifting from vigorous “pulling” to a gentle, passive swishing motion. This less forceful technique allows the oil to circulate while avoiding undue mechanical stress on the fillings. The session duration should also be shortened from the traditional 15 to 20 minutes down to a range of five to ten minutes. If any feeling of looseness, sensitivity, or discomfort is experienced, the practice should be stopped immediately, and consulting with a dentist is advised before incorporating oil pulling into a routine.