Provisional Crown Dislodgement during Scuba Diving: A Case of Barotrauma

Akay

Mumcu

et al. 2022

AEAT

Purpose The purpose of this study is to test the shear-bond-strengths of auto-mixed and manual-mixed self-adhesive resin cement to dentin on long-term high-altitude pressure. Design/methodology/approach Human molars were embedded in acrylic resin. Sixty composite resin discs were obtained. The composite resin discs were bonded to dentin using hand-mixed and auto-mixed self-adhesive resin cement. After cementation, the samples were stored in artificial saliva and divided into two subgroups (n = 30), hypobaric pressure and the atmospheric pressure group. The specimen underwent three pressure cycles per day for 100 days. The failure types were evaluated after debonding with scanning electron microscopy. The shear bond strength was tested with Universal Testing Machine. Analysis of variances/Tukey post hoc tests were used for statistical analysis. Groups were also evaluated by the Weibull modulus. Findings Regardless of hypobaric pressure changes, the highest bond strength was examined in auto-mixed Panavia SA samples. A significant difference was found in both auto-mixed MaxCem EC and hand-mixed RelyX U200 group after exposure to hypobaric pressure compared to the control group. Originality/value The luting cement-type, mixing methods of cements and environmental pressure changes significantly influence the bond strengths. Dentists can use auto-mixed self-adhesive resins in patients likely to be exposed to hypobaric pressure.

Section: Introductionmentioning

confidence: 99%

Adhesion of auto-mixed and manual-mixed self-adhesive resin cements to dentin on exposure to long-term high-altitude pressure

Akay

Mumcu

et al. 2022

AEAT

“…The volume and pressure of an ideal gas at constant temperature vary inversely. The result of dental barotrauma may cause microleakages and dislodgement of dental restorations and crowns (Gulve and Gulve, 2013; Lyons et al , 1997). Although the ambient pressure is constant in daily life, some situations cause temporary barometric changes in the body such as high-altitude flights, mountain climbing, diving and working under hyperbaric pressure (Robichaud and McNally, 2005; Zadik, 2010).…”

Section: Introductionmentioning

confidence: 99%

The effect of environmental pressure changes on the bond strength between zirconia ceramic and adhesive resin cement

Akay

2022

AEAT

Purpose The purpose of this study was to investigate the effect of the environmental pressure changes on the bond strength between zirconia ceramics and adhesive resin cement. Design/methodology/approach In total, 40 rectangular-shaped zirconium-oxide ceramic specimens were prepared. For surface modification, all zirconia specimens were sandblasted with 50 μm alumina particles. The composite resin discs were bonded to modified zirconia surfaces with resin cement. The specimens were divided into four groups; hyperbaric, hypobaric, hyperbaric + hypobaric and control group. The specimen underwent pressure cycles for 30 days. The shear bond strength test was performed by using the universal testing machine, and failures of the debonded samples were examined with scanning electron microscopy and light microscope. Findings No significant difference in bond strength was found between the hyperbaric, hypobaric and control groups after 30 days (p > 0.05). However, there was a significant difference in the hyperbaric + hypobaric group compared to the control group (p = 0.022). Also, the Weibull modulus was highest in control group and lowest in the hyperbaric + hypobaric group. Originality/value Barometric changes due to flying followed by diving may have an adverse effect on the retention of zirconia ceramics. Care should be taken in the selection of materials for dental treatment of people who are exposed to environmental pressure changes.

J Int Soc Prevent Communit Dent

“…In an environment of diving, this type of pain is generally termed as tooth squeeze. [ 9 11 , 12 ] It affects the upper teeth than the lower teeth more commonly and many of the episodes appear on descent. [ 7 8 ]…”

Section: Introductionmentioning

confidence: 99%

Dental and orofacial barotraumas among Saudi Military Naval Divers in King Abdul Aziz Naval Base Armed Forces in Jubail, Saudi Arabia: A cross-sectional study

Alwohaibi

Alohali

Al-Takroni

et al. 2020

A BSTRACT Background: The aim of this study was to assess dental as well as orofacial pain under atmospheric pressure in military divers. Materials and Methods: Cross-sectional study was conducted in King Abdulaziz Naval Base Armed Forces (KANB) in Jubail, Saudi Arabia involving 216 Saudi military divers. Questionnaire was formulated to assess the prevalence and factors associated with dental as well as orofacial pain among divers. Results: Of total 216 participants, 35.6% participants dive 10-50times/year; whereas 52.8% dive in more than 20 m depth and 67.2% dive in the atmospheric pressure of >1.5bar. Majority (81.9%) used compressed air when diving. Sudden pain during or after diving was experienced by 67.1% in head or facial area, 69.2% in nose and paranasal sinuses, and 52.3% have experienced dental injury. Statistically significant associations were found between pain during diving with a frequency of diving, diving depth, and atmospheric pressure with P < 0.001, 0.001, and 0.011, respectively. Conclusion: Through this study, we concluded that dental and orofacial pain were experienced by more than half of the military divers at least once during their dive. Factors like increased frequency of diving, deep divers, and increased atmospheric pressure increases the extent of pain. Findings of this study suggested that more studies focusing on diving centers should be performed to realize the complete range of the issue.