THE MASSAD ESTHETIC SPACE RULER The Massad Esthetic Space Ruler (MESR) is a multi-functional measuring device for use with both edentulous and dentate patients. The measurements obtained through use of the Ruler provide essential information for determining treatment plans, predicting esthetic outcomes, and also describing a patient?s oral topography using currently accepted guidelines. The Massad Esthetic Space Ruler is constructed of clear plastic, angled for ease of placement in both the maxillary and mandibular arches, and notched on both ends for patient comfort when placed in contact with the vestibular frena. The Ruler has ?dimples? placed at 1millimeter increments, and horizontal lines at 5 millimeter increments. The finished surface of the Ruler is easily marked with a fine point indelible marker.