Evaluation of Changes in the Occlusion and Occlusal Vertical Dimension in Children Following the Placement of Preformed Metal Crowns Using the Hall Technique

Abstract

Objectives: To evaluate the time taken and the mechanism through which the occlusion settles following the placement of a preformed metal crown (PMC) using the Hall technique. The secondary objective was to assess any temporo mandibular joint dysfunction (TMD) resulting from the Hall technique through a questionnaire. Study Design: 44 children fulfilling the inclusion criteria were evaluated for changes in overbite and occlusal vertical dimension (OVD) following the placement of preformed metal crowns (PMCs) using the Hall technique. The overbite and OVD measurements were taken before treatment, immediately post treatment, then at one, two, three and four weeks post treatment. After four weeks, a questionnaire recorded the occurrence of any signs or symptoms of TMD. Results: At the fourth week, the overbite measurement did not show a statistically significant difference (p value= 0.58) compared to baseline values indicating that the occlusion settled by the fourth week. By the third week the OVD values obtained did not show a significant difference compared to the baseline (p value= 0.42) indicating that the OVD had been restored. The questionnaire provided at the end of four weeks showed negative response for signs and symptoms of TMD in all the children. Conclusion: Any changes in occlusion following the placement of a Hall crown settles in four weeks. The OVD settles three weeks post placement implying that extrusion of teeth do not play a role in settling of the occlusion. The children do not develop any signs or symptoms of TMD post a Hall crown.

Survival of stainless‐steel crowns and composite resin restorations in molars affected by molar‐incisor hypomineralization (MIH)

“…This compensation may occur due to the intrusion of the restored molar and its antagonist, the eruption of other teeth, or the combination of both 28 . It is also important to note that in this study there was no significant difference with respect to TMJ pain in the group treated with SSC (Table 5), corroborating the findings of Joseph et al, which showed that children treated with the Hall technique did not develop TMJ symptomatology 29 …”

“…This difference may not be clinically significant if the patients are considered to be in mixed dentition, and during this period, physiological changes occur due to the development of the occlusion. Other studies have reported that with the placement of SSC with the Hall technique, the vertical dimension is re‐established in a period of four weeks 29,30 . This compensation may occur due to the intrusion of the restored molar and its antagonist, the eruption of other teeth, or the combination of both 28 .…”

A Comparison between Hall's Technique and the Conventional Method of Managing Proximal Caries in Primary Teeth

“…The results of the current study showed that after two weeks of applying the Hall's crown technique to the lower primary molars, 27% of cases (30% for the first molar and 23% for the second molar) had a bilateral balanced occlusion, while about 25% of the cases (20% For the first molar and 30% for the second molar) needed up to three weeks to obtain a bilateral balanced occlusion, and 35% of cases required about a month to obtain abilateral balanced occlusion. We noted that after a month of application, 87% of cases (84% for the first molar and 90% for the molar the second) have returned to the position of a balanced occlusion bilaterally and the remaining cases of 13% (17% for the first molar and 10% for the second molar) took more than a month, achiev-ing a balanced occlusion upon examination after two months, which is consistent with most of the previous studies that also found that the Occlusal Vertical Dimension returned to a balanced state about a month after application [18,20,21].…”

Oral health-related quality of life and parental anxiety in chinese children undergoing Dental General Anesthesia: a prospective study

“…The increased OVD can be compensated by the intrusion of the restored tooth and its antagonist, continued re-eruption of other teeth in the arch, or a combination of both. Rose Maria et al also reported that any changes in occlusion following the SSC placement could settle in four weeks [ 20 ]. Increased OVD exposes the periodontal ligament of the restored tooth to increased bite force, resulting in blood flow disturbance in the compressed periodontal ligament (PDL), followed by cell death, called hyalinization, which is resorbed by macrophages, with resorption of the undermined bone through osteoclast activity, eventually leading to tooth movement to settle OVD.…”