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Periodontal relevance of anterior crowding

Parodontale Relevanz des frontalen Engstandes


The periodontal relevance of anterior and posterior crowding concerns 3 main aspects: 1. oral hygiene/plaque retention, 2. altered topography of gingiva, septum and orofacial alveolar bone and 3. periodontal therapy (scaling, root planing, regenerative approaches).

These aspects are discussed with regard to the literature and to the author's own clinical and histological findings.

Present-day knowledge suggests that the following positive periodontal effects can be expected from correction of orthodontic crowding:

  • • better access for oral hygiene,

  • • improved morphology of soft and hard periodontal tissues; future research has to substantiate the value of this benefit,

  • • simplified mechanical and surgical therapy (scaling, root planing, curettage),

  • • more favorable conditions for periodontal regeneration.


Die parodontale Relevanz eines frontalen oder seitlichen Engstandes betrifft drei Hauptaspekte: 1. Hygienefähigkeit/Plaqueretention, 2. veränderte Topographie von Gingiva, Septum und orofazialem Alveolarknochen und 3. Parodontaltherapie (Scaling, Wurzelglättung, regenerative Verfahren).

Diese Aspekte werden diskutiert unter Berücksichtigung der Literatur und aufgrund eigener klinischer und histologischer Befunde.

Nach heutigem Kenntnisstand können von einer orthodontischen Engstandkorrektur folgende positive parodontale Effekte erwartet werden:

  • • verbesserte Hygienefähigkeit,

  • • verbesserte Morphologie der parodontalen Weich- und Hartgewebe; zukünftige Forschung muß die Wertigkeit dieses Vorteils erhärten,

  • • erleichterte mechanische und chirurgische Therapie (Scaling, Wurzelglättung, Kürettage),

  • • günstigere Voraussetzungen für eine parodontale Regeneration.

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Correspondence to Peter Diedrich.

Additional information

Dedicated to Prof. Rolf Berg on the occasion of his 65th birthday.

Keynote lecture on the occasion of the Annual Congress of the German Orthodontic Society, Ulm 1999.

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Diedrich, P. Periodontal relevance of anterior crowding. J Orofac Orthop/Fortschr Kieferorthop 61, 69–79 (2000).

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Key Words

  • Crowding
  • Root proximity
  • Periodontal prognosis
  • Stripping
  • Ortho-perio relationship


  • Engstand
  • Wurzelengstand
  • Parodontale Prognose
  • Strippen
  • Ortho-Paro-Beziehungen