Hypersensitivity in teeth affected by molar-incisor hypomineralization (MIH)

Abstract

Tooth hypersensitivity is a common symptom in patients with molar-incisor hypomineralization (MIH). Therefore, this clinical study aimed to assess potential associations between patient- and tooth-related variables and the intensity of hypersensitivity in MIH-affected permanent teeth compared to healthy controls. Fifty-seven MIH patients and 20 healthy adolescents with a total of 350 MIH-affected and 193 healthy teeth were included in this study. The intensity of hypersensitivity was measured after cold air stimulation using the Schiff Cold Air Sensitivity Scale (SCASS) by the dentist and visual analogue scale (VAS) by the patient. Tooth hypersensitivity was low in non-MIH teeth (97.9% of the group had zero SCASS and VAS values). In contrast, MIH-affected teeth with demarcated opacities and atypical restorations had moderate SCASS and VAS values, whereas teeth with enamel breakdown were mostly linked to severe hypersensitivity. The logistic regression model confirmed a significantly lower level of hypersensitivity in MIH patients aged ≥ 8 years (OR 0.06, 95% CI 0.01–0.50, p = 0.009) and higher levels in molar teeth (OR 5.49, 95% CI 1.42–21.27, p = 0.014) and teeth with enamel disintegration (OR 4.61, 95% CI 1.68–12.63, p = 0.003). These results indicate that MIH-related tooth hypersensitivity seems to be present in disintegrated molars immediately after tooth eruption.

Impact of molar incisor hypomineralization on oral hygiene and gingival health in 8–15‐years‐old children

“…Our study also had a wider age range (8–15 years), which might have affected plaque accumulation as well. In addition, the increase in plaque accumulation with the presence and severity of MIH might have been due to difficulty in eating and insufficient oral hygiene caused by hypersensitivity, which is frequently encountered in the presence of MIH and increases with severity 5,19 . Moreover, high surface roughness in the enamel, which occurs due to increased MIH severity, might have increased the susceptibility to plaque as well 9 .…”

Herausforderungen bei der Versorgung von Patienten* mit einer Molaren-Inzisiven-Hypomineralisation

“…Sie treten bei etwa einem Drittel aller MIH-Zähne auf [16,17], und können bereits beim Durchbruch der Zähne ein Problem darstellen. Darüber hinaus sind Zähne mit Schmelzeinbrüchen [16,18] und dunkleren Opazitäten [17] häufiger betroffen. Demgegenüber scheint eine weniger ausgeprägte Hypersensibilität mit umschriebenen Opazitäten und atypischen Restaurationen einherzugehen, wobei die Defektausdehnung keinen wesentlichen Einfluss zu haben scheint [18].…”

“…Darüber hinaus sind Zähne mit Schmelzeinbrüchen [16,18] und dunkleren Opazitäten [17] häufiger betroffen. Demgegenüber scheint eine weniger ausgeprägte Hypersensibilität mit umschriebenen Opazitäten und atypischen Restaurationen einherzugehen, wobei die Defektausdehnung keinen wesentlichen Einfluss zu haben scheint [18]. Weiterhin treten unabhängig vom Schweregrad der MIH häufiger Hypersensibilitäten an den Molaren als an den Inzisiven auf [17].…”

The Retention Effect of Resin-Based Desensitizing Agents on Hypersensitivity—A Randomized Controlled Trial

“…In contrast to genetic hypomineralization, such as AI, there is no genetic background, but complications during pregnancy such as diabetes and hypertension, vitamin D deficiency due to decreased sun exposure, nutrition problems such as malnutrition and obesity, tobacco and alcohol consumption, neonatal complications, low birth weight, and medications during infancy may also have an effect [ 8 , 9 , 10 , 11 ]. Some MIH can be painful owing to severe enamel defects [ 12 , 13 ]. The calcification period of second primary molars, permanent incisors, and first permanent molars is similar.…”