**Core Concept**
Composting is a process that involves the controlled decomposition of organic waste, including food scraps and yard trimmings, into a nutrient-rich soil amendment. This process is beneficial for soil building as it recycles organic matter, improves soil structure, and supports plant growth.

**Why the Correct Answer is Right**
Composting is an effective method for managing organic waste, particularly in the context of dental practices that generate a significant amount of biodegradable materials, such as food waste and paper products. The process involves microorganisms breaking down the organic matter into a stable humus that can be used as a fertilizer, thus promoting soil health and fertility. Composting also reduces the amount of waste sent to landfills, minimizing the production of methane, a potent greenhouse gas.

**Why Each Wrong Option is Incorrect**
**Option A:** Incineration is a method of waste disposal that involves burning waste at high temperatures, releasing pollutants into the atmosphere and producing ash that requires special handling. This method is not suitable for soil building and is not considered a safe disposal practice.
**Option B:** Controlled tipping involves the disposal of waste in a landfill, where it is compacted and covered with soil. While this method is safer than dumping, it does not promote soil building and can lead to environmental pollution.
**Option D:** Dumping is an uncontrolled disposal method that involves disposing of waste in an open area, often without proper containment or treatment. This method is not safe and does not promote soil building.

**Clinical Pearl / High-Yield Fact**
When managing organic waste in dental practices, it's essential to follow proper composting procedures to avoid attracting pests and creating unpleasant odors. This can be achieved by maintaining a consistent carbon-to-nitrogen ratio, providing adequate moisture, and turning the compost pile regularly.

**✓ Correct Answer: C. Composting. Composting is a good method for soil building.**