Arch width is a very important factor in the facial appearance of an individual. It also determines the arrangement of teeth in the dental arch. If the dental arch width is small and the teeth size is large there will be malaligned teeth and crowded teeth. If the arch width is large and the teeth size is small there will be lot of spaces between the teeth. This is known as tooth material-arch width discrepancy. This book gives a detail about the arch width and its implications.
