Biological Principles

1960s
1968
Sullivans & Atkins
1968

First systematic description of gingival grafting, including healing mechanisms, and set the foundation for modern soft tissue grafting techniques ...

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1970s
1975
Karring et al
1975

Landmark study that demonstrated that connective tissue dictates the phenotype of overlying epithelium in the oral mucosa.

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1976
Melcher
1976

Introduction of the concept of "compartmentalization" in the literature, which was fundamental for the development of periodontal regenerative ther...

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1979
Listgarten & Rosenberg
1979

A histological investigation of human periodontal tissues following reattachment procedures provided critical insight into the healing and reformat...

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1980s
1980
Caton et al
1980

A comparative histological study evaluating the influence of four different regenerative procedures on connective tissue attachment levels highligh...

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1980
Karring et al
1980

An early experimental study assessing the healing potential of periodontitis-affected roots implanted into bone revealed that diseased tissues reta...

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1982
Nyman et al
1982

One of the first clinical studies in humans to clearly report new attachment formation following surgery, this study provided early clinical valida...

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1984
Gottlow et al
1984

A landmark paper that explicitly introduced the term Controlled Tissue Regeneration, demonstrating that tissue healing could be actively regulated ...

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1985
Karring et al
1985

A follow-up in vivo study providing experimental evidence for Melcher’s hypothesis, confirming that PDL cells can guide true regeneration of period...

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1986
Gottlow et al
1986

One of the earliest clinical case reports applying GTR in humans, demonstrating that barrier membranes can promote new attachment formation, thereb...

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1987
Nyman et al
1987

A landmark histological study confirming that new cementum, PDL, and bone could form following GTR in humans, offering definitive biological proof ...

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1988
Dahlin et al
1988

The first animal study to successfully apply GTR principles to bone defects rather than the periodontium, representing the origin of the concept of...

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1989
Bowers et al
1989

A pivotal human study evaluating multiple surgical regenerative techniques, verifying their ability to reconstitute the full new attachment apparat...

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1990s
1990
Nyman et al
1990

A clinical case series applying the GBR concept to peri-implant bone defects, helping establish GBR as the standard approach for pre-implant bone r...

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1990
Wikesjö & Nilvéus
1990

A classic study highlighting the importance of wound stability, particularly the blood clot,s for regenerative success.

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1994
Schenk et al
1994

An experimental study describing the bone healing pattern,confirming the original hypothesis of GBR that membrane coverage of bone defects creates ...

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1995
Sigurdsson et al
1995

The study evaluated bone and cementum regeneration following periodontal reconstructive surgery using recombinant human bone morphogenetic protein-...

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1997
Heijl et al
1997

The first pivotal clinical trial demonstrating the effectiveness of Enamel Matrix Derivative (EMD/EMDOGAIN®) in humans, marking a shift from physic...

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1997
Zitzmann et al
1997

One of the earliest clinical studies comparing biodegradable collagen membranes versus ePTFE membrane.

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1999
Sculean et al
1999

One of the first controlled clinical trials to directly compare GTR and EMD under the same conditions, providing valuable evidence for selecting be...

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2000s
2000
Bartold et al
2000

The paper explains the roles of different cells—like fibroblasts, immune cells, and epithelial cells—in tissue health, inflammation, healing, and p...

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2001
Goldstein et al
2001

The first human histological evidence of new connective tissue attachmentn following root coverage with a subepithelial connective tissue graft, co...

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2001
Guiha et al
2001

This study demonstrated that subepithelial connective tissue grafts undergo rapid and complete revascularization from the periodontal and supraperi...

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2003
Berglundh et al
2003

A landkmark paper describing the healing sequence that leads to implant osseointegration.

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2003
Donos et al
2003

Preclinical histological evidence showing periodontal regeneration—including new cementum with inserting collagen fibers and significant bone fill—...

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2003
Nevins et al
2003

The first human histological evidence that the use of rhPDGF-BB combined with bone allograft promotes periodontal regeneration in Class II furcatio...

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2004
Abrahamsson et al
2004

A landmark paper describing the healing sequence that leads to implant osseointegration on different implant surfaces.

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2004
Seo et al
2004

This study laid the groundwork for biologically advanced, cell-based regenerative therapies beyond conventional biomaterials or growth factors.

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2004
Wikesjö et al
2004

One of the preclinical studies supporting the use of rhBMP for enhanced bone formation.

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2005
Araújo & Lindhe
2005

One of the earliest preclinical studies demonstrating thin buccal bone wall undergoes rapid resorption with over 2 mm of vertical loss after tooth ...

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2005
Graziani et al
2005

An animal study confirming that periodontal healing following GTR in recession-type defects can lead to long-term complete periodontal regeneration.

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2009
Araújo & Lindhe
2009

A foundational study showing that tooth extraction is not merely a surgical procedure but a biological turning point, emphasizing the importance of...

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2010s
2012
Liu et al
2012

An in vitro study showing that mesenchymal stem cells derived from inflamed periodontal ligaments have impaired immunomodulatory function, highligh...

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2012
Miron et al
2012

An in vivo study investigating how different autogenous bone harvesting techniques influence the release of growth factors.

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2012
Nunez et al
2012

Preclinical study demonstrating that implantation of cementum- or PDL-derived cells promotes true periodontal regeneration, including new cementum ...

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2013
Dickinson et al
2013

This study provides a detailed temporal mapping of early periodontal wound healing and regeneration, clarifying the rapid cellular events that shap...

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2019
Gruber
2019

The impact of immune cells on bone regeneration is presumably a way to reinitiate the developmental mechanisms of intramembranous and endochondral ...

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