Vertical dimension of occlusion related to mandibular movement during swallowing

Data on estimating the vertical dimension of occlusion (VDO) for fabricating a complete denture based on tongue pressure, which is related to masticatory and swallowing functions, are scarce. This study aimed to examine the changes in tongue pressure on raising or lowering of the VDO from the most comfortable position (MCP) .Ten edentulous, including Eichner C3, patients with existing dentures (six men and four women; mean age, 78.6±7.14 years) were recruited from a hospital setting. Twelve different heightpositioning stimulus stainlesssteel blocks were used (from +1 mm to 6 mm and +9 mm and from -1 mm to -4 mm) . VDO from the most comfortable position (MCP) and the tongue pressure at the respective height were measured. Oneway analysis of variance (ANOVA) and Dunnett's test were performed to analyze the differences in tongue pressure at different VDOs.There were no significant differences between the stimulus intervals ( -1 to -4 mm, p = 0.99) on lowering VDO from MCP. Tongue pressure decreased marginally when the VDO was raised +5 mm from the MCP (p=0.054) ; it continued to show a significant decrease at +6 mm (p=0.041) and +7 mm (p=0.035) from MCP.Tongue pressure did not change significantly when VDO was lowered and raised to +5 mm from MCP. These results suggest that VDO may be set to 5 mm from MCP when fabricating new complete dentures.

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“…However, VDO and tongue pressure are related (9,15) and affect mastication (9 -12) and swallowing (7,15,17) .…”

Section: Discussionmentioning

confidence: 99%

Relationship between Occlusal Vertical Dimension and Tongue Pressure in Complete Denture Wearers

et al. 2023

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“…A study observed that the increase in VDO could change the extent of mandibular trajectory during swallowing only if the increase was more than 3 mm. [ 39 ]…”

Section: Discussionmentioning

confidence: 99%

Comparison of patient satisfaction between complete dentures fabricated using “conventional” and “cephalometric angular reconstruction” vertical dimension procedures: A multicenter randomized clinical trial

Vinnakota

Edamadaka

Reddy

et al. 2022

J Indian Prosthodont Soc

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Aim: In Prosthodontics, during complete denture fabrication, conventional methods employed to determine occlusal vertical dimension require patient co-operation. Hence, the aim of the present study is to evaluate the clinical effectiveness of the 'cephalometric angular reconstruction' procedure in the calculation of these lost dimensions. Settings and Design: Multicentric randomised clinical trial conducted in four dental hospitals. Materials and Methods: Fully edentulous people who came to the hospitals for complete denture treatment were recruited into the study. Those who fulfilled the inclusion criteria were randomly assigned to two groups; Group 1: Dentures fabricated using a 'conventional' procedure and Group 2: Dentures fabricated using 'cephalometric angular reconstruction'. The patient's level of satisfaction was assessed on a scale of 1 to 5; 1-dissatisfaction to 5-excellent. The confounding factors that can influence the satisfaction were also recorded. Statistical Analysis Used: The distribution of patient's satisfaction was assessed using Chi-square test, whereas the difference between the two groups was evaluated using Mann–Whitney test. Results: There was no significant difference either in the vertical dimension determined ( P = 0.465) or the patient's level of satisfaction ( P = 0.943) between the two groups. There was no influence of confounding factors considered in the present study on the satisfaction levels. There was no difference in the distribution of satisfaction levels based on the dentist's quality assessment ( P = 0.243). Conclusion: Complete dentures fabricated using cephalometric angular reconstruction procedure of vertical dimension determination were equivalent with respect to patient satisfaction, compared to those made using a conventional method. Hence, the new method can be clinically recommended during denture fabrication.

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“…examine in their study the relation between a gradual artificial VDO increase and mandibular movement during swallowing in healthy subjects. Indeed, they find a positive correlation between VDO and mandibular movement in the lateral direction, but also point out that natural physical adaptation is likely to temper most initial discomfort [ 42 ].…”

Section: Also In This Issuementioning

confidence: 99%

Guards! Guards! How innate lymphoid cells ensure local law and order

Häfner

2021

Biomedical Journal

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This special issue of the Biomedical Journal is dedicated to the latest official recruits in the field of immunology: innate lymphoid cells, the tissue-resident sentinels and first responders to damage or invasion. Subsequently, we consider extracellular vesicle release during bacterial infection, how immunomodulation can avoid compromising Mycobacterium tuberculosis clearance, and how innate immunity jeopardises the organism during rheumatoid arthritis. Moreover, we ponder over the predictive value of cardiac troponin in influenza, the virtues of cashew nuts and bilirubin, as well as holes in the heart. Finally, we learn that mandibular movement during swallowing increases with the vertical dimension of occlusion, and that early controlled relaxation incisions restore the blood supply to the extremities in harlequin ichthyosis neonates.

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Vertical dimension of occlusion related to mandibular movement during swallowing

Cited by 8 publications

References 26 publications

Relationship between Occlusal Vertical Dimension and Tongue Pressure in Complete Denture Wearers

Relationship between Occlusal Vertical Dimension and Tongue Pressure in Complete Denture Wearers

Comparison of patient satisfaction between complete dentures fabricated using “conventional” and “cephalometric angular reconstruction” vertical dimension procedures: A multicenter randomized clinical trial

Guards! Guards! How innate lymphoid cells ensure local law and order

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