* **Soft Silicone:** The introduction of soft silicone materials revolutionized mouthpiece design. Silicone provided a level of comfort and flexibility previously unattainable with hard plastic, making diving much more enjoyable.
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**The Tube:** This is the conduit that connects the mouthpiece to the regulator, the device that controls the flow of air from the tank. The tube is typically made of flexible plastic, allowing for movement and flexibility while maximizing airflow. It's designed to be smooth and unobstructed, ensuring that the air travels to the diver without any resistance or obstruction.
* **Material:** Silicone mouthpieces are generally the most comfortable and popular, while rubber mouthpieces offer more durability.
* **The Advent of the Bite Block:** In the mid-1950s, the first bite blocks were introduced, offering a more comfortable and secure fit in the mouth. These early bite blocks were often made of hard plastic, which could still cause discomfort and jaw fatigue.
### Customizing Your Comfort
**4. ** **Rebreather Mouthpieces:** Rebreather mouthpieces are specifically designed for use with rebreathers, a type of scuba diving equipment that recycles exhaled air. These mouthpieces often feature a larger bite block and a more complex design to accommodate the unique breathing pattern and gas delivery system associated with rebreathers. |