Patient Ye is a young male. Because of a gap in his lower front teeth, he felt that his speech was leaking and his pronunciation was affected, especially the /s/ sound and other fricative consonants, which caused him a great deal of trouble. The fricative consonants of /s/ are formed because the tip of the tongue needs to be close to the gingiva in order for the air to flow from the tip of the tongue to the gingiva, thus forming a fricative sound. A gap between the lower front teeth does affect this kind of pronunciation. Through clinical examination, I found that in addition to missing a lower anterior tooth, there is a gap of 1.5mm, and the gap near the middle neighboring teeth twisted 90 degrees, the patient also has a number of oral problems: 1, the whole mouth of the teeth are crowded, misalignment; 2, the color of the maxillary anterior teeth is brownish-yellow, and the mandibular anterior teeth scattered chalky streaks; 3, the whole mouth of the gingival gingival papilla recession, gingival tartar more. Before treatment, but the patient only wanted to solve the problem of “gap”, so the author gave the following four options: 1, orthodontic treatment. Orthodontic treatment is also known as “wearing braces” to correct the alignment of teeth. This program is actually more suitable for this patient. However, the patient refused to do this program due to the high cost and long time. 2, to fill the gap “plug” up, but due to the existence of less convenient operation, it is difficult to obtain the best shape and color, fixation is not good and other shortcomings, generally not used. 3.To change the shape of teeth and close the gap by making porcelain crowns. But because of the lower anterior teeth form smaller, often need to do before the crown root canal treatment, that is, the people often say “kill the nerve”, and then the teeth will be adjusted to grind out the space required to do the crown. Time-consuming and laborious, traumatic, the cost is not low, cost-effective. 4, neighboring veneers to close the gap. No need to grind teeth or only a small amount of grinding, color and form natural and beautiful, is a better choice. The patient finally chose to do porcelain veneers, and the final results proved to be very good. The patient was very satisfied. After bonding of adjacent veneers, the shape and color are natural and beautiful.