Palate Length Cephalometric

Definition Length of the palate.

Landmarks Measure from the anterior to the posterior nasal spine (Fig. 7.81).

Instruments Spreading calipers are used to measure the distance on a radiograph taken with a "cephalostat."

Position Standard cephalometry-see general introduction to Chapter 7 for details.

Remarks Values for cephalometric measurement of the palate length are shown in Fig. 7.82. Soft tissue measurement of palate length is difficult and requires special instrumentation (Shapiro et al., 1963). With this instrument, palate length is defined as the distance from the labial point of the incisive papilla to the midline of the junction of the hard and soft palates (Fig. 7.83). The majority of clinical dysmorphologists will not have access to such instrumentation.

The palate is generally longer in males than females. This sex difference is accentuated with increasing age.

Ramus Height Mandible
Figure 7.81 Radiographic landmarks for measuring palate length (PL). Note: PS = posterior skull base length; AS = anterior skull base length; FD = facial depth; SR = superior ramus length; RH = ramus height; PM = palate-mandible height; SF = superior facial height. Adapted from Garn et al. (1984).

Figure 7.82 Palate length (cephalometric), both sexes, 6 to 16 years. From Garn et al. (1984), by permission.

Figure 7.82 Palate length (cephalometric), both sexes, 6 to 16 years. From Garn et al. (1984), by permission.

Flaccid Circumfrence

Figure 7.83 Palate length (soft tissue), both sexes, 6 to 16 years. From Redman (1963), by permission.

Figure 7.83 Palate length (soft tissue), both sexes, 6 to 16 years. From Redman (1963), by permission.

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