What does the term 'parafunction' refer to in the context of implant stress?

The term 'parafunction' refers to abnormal or excessive functional activities that occur outside of normal functioning, particularly in relation to the teeth and jaw. In the context of implant stress, this is particularly relevant because parafunctional habits can include behaviors such as bruxism (teeth grinding) or clenching. These activities apply forces that are significantly greater than those encountered during normal chewing.

Understanding parafunction is crucial for evaluating the potential stress on dental implants. Excessive biting forces from parafunctional habits can lead to complications, including implant failure or damage to surrounding bone and soft tissue. Therefore, recognizing and addressing parafunction in patients with dental implants is vital for ensuring long-term success and health of the implant and surrounding structures.

Normal chewing forces represent the typical forces applied to teeth during eating, which are generally manageable for both natural teeth and implants. Maintenance of oral hygiene is critical for overall oral health but doesn't directly relate to the mechanical stresses posed by parafunctional activities. Lastly, a patient’s orthodontic history provides valuable information but does not directly correlate with the definition or implications of parafunction as it pertains to implant stress.