Tooth-wear patterns in subjects with Class II Division 1 malocclusion and normal occlusion

Crown heights in the permanent teeth of 45,X and 45,X/46,XX females

“…These negative values show that the differences in tooth crown heights are not entirely due to wear, but are also influenced by the normal size variation in tooth crowns. It has been shown that subjects with malocclusions have different tooth wear patterns from those with a normal occlusion [34] and it is also possible that wear is not the same on both sides of the jaw, which will tend to alter the differences between crowns sizes on the two sides and, thereby, also the directional and fluctuating asymmetry caused by variations in growth. The differences between the age groups were largest in the 45,X/46,XX females, which could conceivably originate at least in part from the lacking chromosome material.…”

“…Subjects with a normal occlusion and class II malocclusions have different tooth wear patterns [34] and the same is also assumed to apply to lateral crossbites and anterior open bite. The possible effect of age on the tooth crown heights of the three groups studied here was assessed with the t-test and when the mean ages of the 45,X and 45,X/ 46,XX females and the population controls were calculated (see Appendix, Table AIV) and the subjects were grouped into those younger than the calculated mean age or equal to/older than the mean age.…”

Occlusal wear and occlusal condition in a convenience sample of young adults

“…23 Oltravari-Navarro et al 24 showed that an Angle class II division 2 condition was associated with more wear on labial surfaces of mandibular incisors, but not necessarily with more tooth wear in general. Janson et al 25 found more wear of incisors in subjects with Angle class II division 1, although maxillary and mandibular incisors may have minimal contact in these cases. To record this type of wear better, the labial surfaces need to be examined too and not only the occlusal and incisal surfaces as in our study.…”

Achieving Better Function through Combining Orthodontics and Restorative Dentistry in the Case of Dental Abrasions

“…Gradual attrition of the occlusal surfaces of the teeth appears to be a general physiological phenomenon in all mammals, in every civilization, and at all ages [1]. Tooth wear in malocclusion patients should not be considered pathological but rather a consequence of the different interocclusal tooth arrangement [1].…”

“…Tooth wear in malocclusion patients should not be considered pathological but rather a consequence of the different interocclusal tooth arrangement [1]. …”