1 Porcelain veneers are not made at chairside. 2  Porcelain veneers are fabricated in a dental laboratory and therefore require at least two visits. 3  Composite resin veneers are accomplished in one visit.he major disadvantages of porcelain veneers over composite resin include the following: 1  Porcelain veneers are not made at chairside. 2  Porcelain veneers are more expensive than composite veneers. 3  Porcelain veneers cannot be repaired.
Identification. Common or English thyme (Thymus vulgaris), as the name suggests, is most commonly used as an edible herb. It thrives in U.S. Department of Agriculture plant hardiness zones 5 through 9, and generally grows to between 6 and 12 inches tall.dentification. Common or English thyme (Thymus vulgaris), as the name suggests, is most commonly used as an edible herb. It thrives in U.S. Department of Agriculture plant hardiness zones 5 through 9, and generally grows to between 6 and 12 inches tall.
The edible portion is swollen leaves with a bit of stem. They are bulbs which, like garlic and leeks, are modified stems in which the primary storage tissue is expanded leaf bases. They come in white, yellow, and red varieties. Potato. The edible portion is an underground stem that is also a tuber.he edible portion is stem tissue, flower buds, and some small leaves. Cauliflower. The edible portion is proliferated stem and flower tissue. Celery. The whole plant is edible including the crisp petiole (leaf stalk) and the fleshy taproot.