Editing Periodontal disease (section)

=== 2017 classification ===
The 2017 classification of periodontal diseases is as follows:<ref>{{cite journal | vauthors = Jepsen S, Caton JG, Albandar JM, Bissada NF, Bouchard P, Cortellini P, Demirel K, de Sanctis M, Ercoli C, Fan J, Geurs NC, Hughes FJ, Jin L, Kantarci A, Lalla E, Madianos PN, Matthews D, McGuire MK, Mills MP, Preshaw PM, Reynolds MA, Sculean A, Susin C, West NX, Yamazaki K | title = Periodontal manifestations of systemic diseases and developmental and acquired conditions: Consensus report of workgroup 3 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions | journal = Journal of Clinical Periodontology | volume = 45 | pages = S219–S229 | date = June 2018 | issue = Suppl 20 | pmid = 29926500 | doi = 10.1111/jcpe.12951 | url = https://research-information.bristol.ac.uk/files/161189168/R2corr_Workgroup3_Consensus_Report.pdf | doi-access = free }}</ref><ref>{{cite journal | vauthors = Berglundh T, Armitage G, Araujo MG, Avila-Ortiz G, Blanco J, Camargo PM, Chen S, Cochran D, Derks J, Figuero E, Hämmerle CH, Heitz-Mayfield LJ, Huynh-Ba G, Iacono V, Koo KT, Lambert F, McCauley L, Quirynen M, Renvert S, Salvi GE, Schwarz F, Tarnow D, Tomasi C, Wang HL, Zitzmann N | title = Peri-implant diseases and conditions: Consensus report of workgroup 4 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions | journal = Journal of Clinical Periodontology | volume = 45 | pages = S286–S291 | date = June 2018 | issue = Suppl 20 | pmid = 29926491 | doi = 10.1111/jcpe.12957 | doi-access = free | hdl = 2027.42/144618 | hdl-access = free }}</ref><ref name=":2" />

Periodontal health, [[Gums|gingival]] disease and conditions

* Periodontal health and [[Gums|gingival]] health
** Clinical gingival health on an intact periodontium
** Clinical gingival health on an intact periodontium
*** Stable periodontitis
*** Non periodontitis person
*[[Gingivitis]] — Dental [[biofilm]] induced
**Associated with the dental biofilm alone
**Mediated by systemic and local risk factors
**Drug induced gingival enlargement.
*[[Gingival disease]]s — Non dental [[biofilm]] induced
**Genetic/developmental disorders
**Specific infections
**Inflammatory and immune conditions
**Reactive processes
**Neoplasms
**Endocrine, nutritional and metabolic
**Traumatic lesions
**Gingival pigmentation.

Periodontitis

*[[Necrotizing periodontal diseases]]
**[[Acute necrotizing ulcerative gingivitis|Necrotizing Gingivitis]]
**Necrotizing periodontitis
**Necrotizing stomatitis
* [[Periodontitis as a manifestation of systemic disease]]
* Periodontitis

Other conditions affecting the [[periodontium]]

(Periodontal Manifestations of Systemic Diseases and Developmental and Acquired Conditions)

* Systemic disease of conditions affecting the [[periodontal]] support tissues
* Other Periodontal Conditions
** Periodontal [[abscess]]es
** [[Endodontics|Endodontic-]] periodontal [[lesion]]s
*[[Mucogingival junction|Mucogingival]] deformities and conditions
**Gingival Phenotype
**Gingival/Soft Tissue Recession
**Lack of Gingiva
**Decreased Vestibular Depth
**Aberrant Frenum/muscle position
**Gingival Excess
**Abnormal Color
**Condition of the exposed root surface
*[[Occlusal trauma|Traumatic occlusal forces]]
**Primary Occlusal Trauma
**Secondary Occlusal Trauma
* Tooth and [[Dental prosthesis|prosthesis]] related factors
** Localized tooth-related factors
** Localized dental prostheses-related factors

Peri-implant diseases and conditions

* Peri-implant health
*[[Peri-implant mucositis]]
*[[Peri-implantitis]]
* Peri-implant soft and hard tissue deficiencies

==== Staging ====
The goals of staging periodontitis is to classify the severity of damage and assess specific factors that may affect management.<ref name=":2" />

According to the 2017 classification, periodontitis is divided into four stages; after considering a few factors such as:

* Amount and percentage bone loss radiographically
* Clinical attachment loss, probing depth
* Presence of furcation
* Vertical bony defects
* History of tooth loss related to periodontitis
* Tooth hypermobility due to secondary occlusal trauma<ref name=":2">{{cite journal | vauthors = Caton JG, Armitage G, Berglundh T, Chapple IL, Jepsen S, Kornman KS, Mealey BL, Papapanou PN, Sanz M, Tonetti MS | title = A new classification scheme for periodontal and peri-implant diseases and conditions — Introduction and key changes from the 1999 classification | journal = Journal of Periodontology | volume = 89 | pages = S1–S8 | date = June 2018 | issue = Suppl 1 | pmid = 29926946 | doi = 10.1002/jper.18-0157 | s2cid = 49353912 | url = http://pure-oai.bham.ac.uk/ws/files/50172936/Caton_et_al_Version_3.0_NO_TABLES_PNP_amendments_1_ILC.pdf | doi-access = free }}</ref>

==== Grading ====
According to the 2017 classification, the grading system for periodontitis consists of three grades:<ref name=sgp2017>{{Cite web|url=http://perio.org/sites/default/files/files/Staging%20and%20Grading%20Periodontitis.pdf|title=Staging and Grading Periodontitis }}</ref>

*Grade A: Slow progression of disease; no evidence of bone loss over last five years
*Grade B: Moderate progression; < 2mm of bone loss over last five years
*Grade C: Rapid progression or future progression at high risk; ≥ 2mm bone loss over five years

Risk factors affecting which grade a person is classified into include:<ref name=sgp2017/>

*Smoking
* Diabetes