A 30 year old male patient complains of fracture of upper front tooth. Patient gives h/o RCT with 11. Aluminous porcelain was used to make ceramic prosthesis for 11. This prosthesis is contraindicated in all of the following EXCEPT-
**Core Concept**
Aluminous porcelain is a type of dental ceramic material used in dental restorations, particularly for making ceramic prostheses. It contains aluminum oxide, which can be toxic to the body, especially when exposed to acidic conditions.
**Why the Correct Answer is Right**
The correct answer is related to the biocompatibility and durability of aluminous porcelain. Since it contains aluminum oxide, it can be contraindicated in situations where the material may leach into the surrounding tissues or cause an adverse reaction. However, one of the options listed is not a contraindication for aluminous porcelain.
**Why Each Wrong Option is Incorrect**
* **Option A:** Patients with a history of gastrointestinal reflux disease (GERD) may be at risk of exposing the aluminous porcelain to acidic conditions, which can lead to the leaching of aluminum ions. This can cause a range of symptoms, including gastrointestinal upset and bone disease.
* **Option B:** Patients with a history of renal failure may be at risk of aluminum toxicity, which can accumulate in the body and cause a range of symptoms, including bone disease and neurological symptoms.
* **Option C:** Patients with a history of dental caries may be at risk of exposing the aluminous porcelain to acidic conditions, which can lead to the leaching of aluminum ions and potentially cause an adverse reaction.
**Clinical Pearl / High-Yield Fact**
It is essential to choose a dental material that is biocompatible and durable for patients with a history of gastrointestinal reflux disease, renal failure, or dental caries. Aluminous porcelain may not be the best choice for these patients, and alternative materials should be considered.
**Correct Answer:** A