Space Analysis
A diagnostic calculation comparing the space available in the dental arch with the space required to accommodate all teeth in correct alignment.
Full Definition
Space analysis is a key diagnostic procedure in orthodontic treatment planning, involving measurement of the combined mesiodistal widths of the teeth against the length of the dental arch. A negative discrepancy indicates crowding; a positive discrepancy indicates spacing. Common methods include the Bolton analysis (for tooth-size discrepancy), the Moyers prediction, and direct measurement on study models or digital scans. Editors should render this as two words ('space analysis'), not hyphenated, unless used as a compound modifier preceding a noun.
Usage
Usage note: Two words as a noun phrase ('space analysis'). Hyphenate only as a compound modifier before a noun ('space-analysis findings'). Editors should ensure millimetre values are accompanied by a plus or minus sign to indicate spacing or crowding respectively.
In Context
- "Space analysis revealed a lower arch discrepancy of −6 mm, indicating moderate crowding." — Orthodontic diagnosis report
- "Space-analysis findings were used to determine whether extraction of premolars was necessary." — Treatment planning note