Dextron is a polyamide / polyester polymer which is widely used as a suture.

Explanation

To determine whether Dextron is a polyamide or a polyester, we can follow these steps:

### Step 1: Understand the Definitions
- **Polyamide**: A polymer formed from the reaction of a carboxylic acid and an amine, characterized by the presence of amide linkages (C=O-NH).
- **Polyester**: A polymer formed from the reaction of a carboxylic acid and an alcohol, characterized by the presence of ester linkages (C=O-O).

### Step 2: Analyze the Structure of Dextron
- Dextron is described as a complex branched glucan, which means it is a polysaccharide made up of many glucose units.
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