What degree of mobility is defined as slight mobility with up to 1mm of horizontal displacement in the facial-lingual direction?

The definition of slight mobility, which includes up to 1mm of horizontal displacement in the facial-lingual direction, corresponds to Class 1 mobility. This classification is important in dental practice as it helps clinicians assess the stability of teeth and make decisions regarding treatment plans. Class 1 mobility indicates that while there is some degree of looseness, the tooth is still primarily stable and can typically be retained in the mouth.

Understanding this classification helps dental professionals communicate the status of a tooth’s mobility effectively, differentiate between varying degrees of looseness, and determine the necessary interventions if mobility progresses. Hence, identifying Class 1 mobility as slight and within 1mm provides a clear frame for evaluation and patient management in preclinical practice.